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20132131013120 = 29576716767833
BaseRepresentation
bin1001001001111011000001…
…00001001000001000000000
32122021121112211021102201102
410210331200201020020000
510114321101014404440
6110452323500153532
74145332655061320
oct444754041101000
978247484242642
1020132131013120
116461a97127935
1223118a9b388a8
13b305b4814579
144d8586767280
1524da39d3ab15
hex124f60848200

20132131013120 has 160 divisors (see below), whose sum is σ = 55989005010048. Its totient is φ = 6799422947328.

The previous prime is 20132131013119. The next prime is 20132131013123. The reversal of 20132131013120 is 2131013123102.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (160).

It is a super-2 number, since 2×201321310131202 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20132131013092 and 20132131013101.

It is not an unprimeable number, because it can be changed into a prime (20132131013123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7183277 + ... + 9584556.

Almost surely, 220132131013120 is an apocalyptic number.

20132131013120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20132131013120 is an abundant number, since it is smaller than the sum of its proper divisors (35856873996928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20132131013120 is an equidigital number, since it uses as much as digits as its factorization.

20132131013120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16767930 (or 16767914 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 20132131013120 its reverse (2131013123102), we get a palindrome (22263144136222).

The spelling of 20132131013120 in words is "twenty trillion, one hundred thirty-two billion, one hundred thirty-one million, thirteen thousand, one hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 67 70 80 112 128 134 140 160 224 256 268 280 320 335 448 469 512 536 560 640 670 896 938 1072 1120 1280 1340 1792 1876 2144 2240 2345 2560 2680 3584 3752 4288 4480 4690 5360 7504 8576 8960 9380 10720 15008 17152 17920 18760 21440 30016 34304 37520 42880 60032 75040 85760 120064 150080 171520 240128 300160 600320 1200640 16767833 33535666 67071332 83839165 117374831 134142664 167678330 234749662 268285328 335356660 469499324 536570656 586874155 670713320 938998648 1073141312 1123444811 1173748310 1341426640 1877997296 2146282624 2246889622 2347496620 2682853280 3755994592 4292565248 4493779244 4694993240 5365706560 5617224055 7511989184 7864113677 8585130496 8987558488 9389986480 10731413120 11234448110 15023978368 15728227354 17975116976 18779972960 21462826240 22468896220 30047956736 31456454708 35950233952 37559945920 39320568385 42925652480 44937792440 60095913472 62912909416 71900467904 75119891840 78641136770 89875584880 125825818832 143800935808 150239783680 157282273540 179751169760 251651637664 287601871616 300479567360 314564547080 359502339520 503303275328 575203743232 629129094160 719004679040 1006606550656 1258258188320 1438009358080 2013213101312 2516516376640 2876018716160 4026426202624 5033032753280 10066065506560 20132131013120