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23211120133012 = 2277197112024319
BaseRepresentation
bin1010100011100010000101…
…00100100000001110010100
310001011221221212111202100111
411101301002210200032110
511020242333223224022
6121211012534452404
74613643123552610
oct521610244401624
9101157855452314
1023211120133012
117439865225489
12272a579204104
13cc4a50bcca66
145a35d2058340
152a3b93e1d477
hex151c42920394

23211120133012 has 48 divisors (see below), whose sum is σ = 47124560609280. Its totient is φ = 9797414306400.

The previous prime is 23211120132983. The next prime is 23211120133049. The reversal of 23211120133012 is 21033102111232.

It is a congruent number.

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, 4081812 + ... + 7942507.

It is an arithmetic number, because the mean of its divisors is an integer number (981761679360).

Almost surely, 223211120133012 is an apocalyptic number.

It is an amenable number.

23211120133012 is an abundant number, since it is smaller than the sum of its proper divisors (23913440476268).

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

23211120133012 is a wasteful number, since it uses less digits than its factorization.

23211120133012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12025372 (or 12025370 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 23211120133012 its reverse (21033102111232), we get a palindrome (44244222244244).

The spelling of 23211120133012 in words is "twenty-three trillion, two hundred eleven billion, one hundred twenty million, one hundred thirty-three thousand, twelve".

Divisors: 1 2 4 7 14 28 71 142 284 497 971 994 1942 1988 3884 6797 13594 27188 68941 137882 275764 482587 965174 1930348 12024319 24048638 48097276 84170233 168340466 336680932 853726649 1707453298 3414906596 5976086543 11675613749 11952173086 23351227498 23904346172 46702454996 81729296243 163458592486 326917184972 828968576179 1657937152358 3315874304716 5802780033253 11605560066506 23211120133012