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20130233103120 = 2435711982281609
BaseRepresentation
bin1001001001110111011110…
…11001001011001100010000
32122021102122120000121122110
410210323233121023030100
510114303204133244440
6110451411301305320
74145234641105110
oct444735731131420
978242576017573
1020130233103120
116461202879a78
12231145a405240
13b303715630ba
144d8446685040
1524d9783e2080
hex124eef64b310

20130233103120 has 80 divisors (see below), whose sum is σ = 71318540142720. Its totient is φ = 4601196137472.

The previous prime is 20130233103109. The next prime is 20130233103163. The reversal of 20130233103120 is 2130133203102.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5991139125 + ... + 5991142484.

It is an arithmetic number, because the mean of its divisors is an integer number (891481751784).

Almost surely, 220130233103120 is an apocalyptic number.

20130233103120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20130233103120 is an abundant number, since it is smaller than the sum of its proper divisors (51188307039600).

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

20130233103120 is a wasteful number, since it uses less digits than its factorization.

20130233103120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11982281632 (or 11982281626 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20130233103120 its reverse (2130133203102), we get a palindrome (22260366306222).

The spelling of 20130233103120 in words is "twenty trillion, one hundred thirty billion, two hundred thirty-three million, one hundred three thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 35 40 42 48 56 60 70 80 84 105 112 120 140 168 210 240 280 336 420 560 840 1680 11982281609 23964563218 35946844827 47929126436 59911408045 71893689654 83875971263 95858252872 119822816090 143787379308 167751942526 179734224135 191716505744 239645632180 251627913789 287574758616 335503885052 359468448270 419379856315 479291264360 503255827578 575149517232 671007770104 718936896540 838759712630 958582528720 1006511655156 1258139568945 1342015540208 1437873793080 1677519425260 2013023310312 2516279137890 2875747586160 3355038850520 4026046620624 5032558275780 6710077701040 10065116551560 20130233103120