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231412208672 = 2527723072
BaseRepresentation
bin1101011110000100111…
…1100001010000100000
3211010022111220012222102
43113201033201100200
512242413011134142
6254150450425532
722501416214211
oct3274117412040
9733274805872
10231412208672
118a161182537
1238a235922a8
1318a8c1489b8
14b2b3cd9408
156046055532
hex35e13e1420

231412208672 has 54 divisors (see below), whose sum is σ = 458737706637. Its totient is φ = 114912860544.

The previous prime is 231412208647. The next prime is 231412208701. The reversal of 231412208672 is 276802214132.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 203108856976 + 28303351696 = 450676^2 + 168236^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=340156.

It is a super-2 number, since 2×2314122086722 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 753785543 + ... + 753785849.

Almost surely, 2231412208672 is an apocalyptic number.

It is an amenable number.

231412208672 is a deficient number, since it is larger than the sum of its proper divisors (227325497965).

231412208672 is an frugal number, since it uses more digits than its factorization.

231412208672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178 (or 586 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The spelling of 231412208672 in words is "two hundred thirty-one billion, four hundred twelve million, two hundred eight thousand, six hundred seventy-two".

Divisors: 1 2 4 8 16 32 277 307 554 614 1108 1228 2216 2456 4432 4912 8864 9824 76729 85039 94249 153458 170078 188498 306916 340156 376996 613832 680312 753992 1227664 1360624 1507984 2455328 2721248 3015968 23555803 26106973 47111606 52213946 94223212 104427892 188446424 208855784 376892848 417711568 753785696 835423136 7231631521 14463263042 28926526084 57853052168 115706104336 231412208672