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23311343112012 = 22322346499605471
BaseRepresentation
bin1010100110011100110000…
…10100110100111101001100
310001112112122120201121021200
411103032120110310331030
511023413112314041022
6121325025545025500
74624121546042634
oct523163024647514
9101475576647250
1023311343112012
117478315508a4a
122745a89785290
131001333980b27
145a83bc95d6c4
152a65aca00bac
hex153398534f4c

23311343112012 has 72 divisors (see below), whose sum is σ = 61489314432000. Its totient is φ = 7432430031840.

The previous prime is 23311343111993. The next prime is 23311343112041. The reversal of 23311343112012 is 21021134311332.

23311343112012 is a `hidden beast` number, since 2 + 3 + 311 + 3 + 4 + 311 + 20 + 12 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38198437 + ... + 38803907.

It is an arithmetic number, because the mean of its divisors is an integer number (854018256000).

Almost surely, 223311343112012 is an apocalyptic number.

It is an amenable number.

23311343112012 is an abundant number, since it is smaller than the sum of its proper divisors (38177971319988).

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

23311343112012 is a wasteful number, since it uses less digits than its factorization.

23311343112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652003 (or 651998 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 23311343112012 its reverse (21021134311332), we get a palindrome (44332477423344).

The spelling of 23311343112012 in words is "twenty-three trillion, three hundred eleven billion, three hundred forty-three million, one hundred twelve thousand, twelve".

Divisors: 1 2 3 4 6 9 12 18 23 36 46 69 92 138 207 276 414 828 46499 92998 139497 185996 278994 418491 557988 605471 836982 1069477 1210942 1673964 1816413 2138954 2421884 3208431 3632826 4277908 5449239 6416862 7265652 9625293 10898478 12833724 13925833 19250586 21796956 27851666 38501172 41777499 55703332 83554998 125332497 167109996 250664994 501329988 28153796029 56307592058 84461388087 112615184116 168922776174 253384164261 337845552348 506768328522 647537308667 1013536657044 1295074617334 1942611926001 2590149234668 3885223852002 5827835778003 7770447704004 11655671556006 23311343112012