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23203131223020 = 22357293188551367
BaseRepresentation
bin1010100011010011001100…
…11001001110101111101100
310001011012100002222002002020
411101221212121032233230
511020130003043114040
6121203212112430140
74613241136132050
oct521514631165754
9101135302862066
1023203131223020
117436435742131
122728b09848350
13cc4079a70698
145a3075039c60
152a38778b3cd0
hex151a6664ebec

23203131223020 has 96 divisors (see below), whose sum is σ = 74503433346048. Its totient is φ = 5285471891712.

The previous prime is 23203131223001. The next prime is 23203131223043. The reversal of 23203131223020 is 2032213130232.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94152624 + ... + 94398743.

It is an arithmetic number, because the mean of its divisors is an integer number (776077430688).

Almost surely, 223203131223020 is an apocalyptic number.

23203131223020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23203131223020 is an abundant number, since it is smaller than the sum of its proper divisors (51300302123028).

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

23203131223020 is a wasteful number, since it uses less digits than its factorization.

23203131223020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188551679 (or 188551677 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 23203131223020 its reverse (2032213130232), we get a palindrome (25235344353252).

The spelling of 23203131223020 in words is "twenty-three trillion, two hundred three billion, one hundred thirty-one million, two hundred twenty-three thousand, twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 293 420 586 879 1172 1465 1758 2051 2930 3516 4102 4395 5860 6153 8204 8790 10255 12306 17580 20510 24612 30765 41020 61530 123060 188551367 377102734 565654101 754205468 942756835 1131308202 1319859569 1885513670 2262616404 2639719138 2828270505 3771027340 3959578707 5279438276 5656541010 6599297845 7919157414 11313082020 13198595690 15838314828 19797893535 26397191380 39595787070 55245550531 79191574140 110491101062 165736651593 220982202124 276227752655 331473303186 386718853717 552455505310 662946606372 773437707434 828683257965 1104911010620 1160156561151 1546875414868 1657366515930 1933594268585 2320313122302 3314733031860 3867188537170 4640626244604 5800782805755 7734377074340 11601565611510 23203131223020