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231398479343482 = 21112138671156387
BaseRepresentation
bin110100100111010010101000…
…001010011010111101111010
31010100022110220212221020221121
4310213102220022122331322
5220312213041202442412
62140050554402255454
766511663014214123
oct6447225012327572
91110273825836847
10231398479343482
11678045a9052970
1221b526aa65758a
139c16a2425c829
14411da6365b04a
151bb431374d107
hexd274a829af7a

231398479343482 has 16 divisors (see below), whose sum is σ = 378964218781152. Its totient is φ = 105094415398320.

The previous prime is 231398479343461. The next prime is 231398479343489. The reversal of 231398479343482 is 284343974893132.

It is not an unprimeable number, because it can be changed into a prime (231398479343489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4335551508 + ... + 4335604879.

It is an arithmetic number, because the mean of its divisors is an integer number (23685263673822).

Almost surely, 2231398479343482 is an apocalyptic number.

231398479343482 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

231398479343482 is a deficient number, since it is larger than the sum of its proper divisors (147565739437670).

231398479343482 is a wasteful number, since it uses less digits than its factorization.

231398479343482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8671157613.

The product of its digits is 752467968, while the sum is 70.

The spelling of 231398479343482 in words is "two hundred thirty-one trillion, three hundred ninety-eight billion, four hundred seventy-nine million, three hundred forty-three thousand, four hundred eighty-two".

Divisors: 1 2 11 22 1213 2426 13343 26686 8671156387 17342312774 95382720257 190765440514 10518112697431 21036225394862 115699239671741 231398479343482