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231116949888 = 2731154715187
BaseRepresentation
bin1101011100111110100…
…1001100100110000000
3211002112221022112001220
43113033221030212000
512241311414344023
6254101302155040
722461202442346
oct3271751144600
9732487275056
10231116949888
118a01a547210
1238960722a80
1318a42c1ac66
14b2869db996
15602a1813e3
hex35cfa4c980

231116949888 has 64 divisors (see below), whose sum is σ = 669713901120. Its totient is φ = 70035438080.

The previous prime is 231116949871. The next prime is 231116949907. The reversal of 231116949888 is 888949611132.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27353370 + ... + 27361817.

It is an arithmetic number, because the mean of its divisors is an integer number (10464279705).

Almost surely, 2231116949888 is an apocalyptic number.

It is an amenable number.

231116949888 is an abundant number, since it is smaller than the sum of its proper divisors (438596951232).

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

231116949888 is a wasteful number, since it uses less digits than its factorization.

231116949888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54715215 (or 54715203 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 60.

The spelling of 231116949888 in words is "two hundred thirty-one billion, one hundred sixteen million, nine hundred forty-nine thousand, eight hundred eighty-eight".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 64 66 88 96 128 132 176 192 264 352 384 528 704 1056 1408 2112 4224 54715187 109430374 164145561 218860748 328291122 437721496 601867057 656582244 875442992 1203734114 1313164488 1750885984 1805601171 2407468228 2626328976 3501771968 3611202342 4814936456 5252657952 7003543936 7222404684 9629872912 10505315904 14444809368 19259745824 21010631808 28889618736 38519491648 57779237472 77038983296 115558474944 231116949888