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30003120311200 = 25521991669112919
BaseRepresentation
bin1101101001001101001010…
…10101000000101110100000
310221020021022001002222202121
412310212211111000232200
512413032342244424300
6143451124310154024
76214440201530341
oct664464525005640
9127207261088677
1030003120311200
119618285266043
123446980352914
131398388a2923a
1475a2319500c8
153706b3bd581a
hex1b49a5540ba0

30003120311200 has 144 divisors (see below), whose sum is σ = 73657941840000. Its totient is φ = 11933680112640.

The previous prime is 30003120311179. The next prime is 30003120311221. The reversal of 30003120311200 is 211302130003.

It is an interprime number because it is at equal distance from previous prime (30003120311179) and next prime (30003120311221).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 265648341 + ... + 265761259.

It is an arithmetic number, because the mean of its divisors is an integer number (511513485000).

Almost surely, 230003120311200 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30003120311200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36828970920000).

30003120311200 is an abundant number, since it is smaller than the sum of its proper divisors (43654821528800).

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

30003120311200 is a wasteful number, since it uses less digits than its factorization.

30003120311200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114807 (or 114794 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 30003120311200 its reverse (211302130003), we get a palindrome (30214422441203).

The spelling of 30003120311200 in words is "thirty trillion, three billion, one hundred twenty million, three hundred eleven thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 199 200 398 400 796 800 995 1592 1669 1990 3184 3338 3980 4975 6368 6676 7960 8345 9950 13352 15920 16690 19900 26704 31840 33380 39800 41725 53408 66760 79600 83450 112919 133520 159200 166900 225838 267040 332131 333800 451676 564595 664262 667600 903352 1129190 1328524 1335200 1660655 1806704 2258380 2657048 2822975 3321310 3613408 4516760 5314096 5645950 6642620 8303275 9033520 10628192 11291900 13285240 16606550 18067040 22470881 22583800 26570480 33213100 44941762 45167600 53140960 66426200 89883524 90335200 112354405 132852400 179767048 188461811 224708810 265704800 359534096 376923622 449417620 561772025 719068192 753847244 898835240 942309055 1123544050 1507694488 1797670480 1884618110 2247088100 3015388976 3595340960 3769236220 4494176200 4711545275 6030777952 7538472440 8988352400 9423090550 15076944880 17976704800 18846181100 30153889760 37503900389 37692362200 75007800778 75384724400 150015601556 150769448800 187519501945 300031203112 375039003890 600062406224 750078007780 937597509725 1200124812448 1500156015560 1875195019450 3000312031120 3750390038900 6000624062240 7500780077800 15001560155600 30003120311200