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231545352452554 = 2741445891904681
BaseRepresentation
bin110100101001011011011010…
…011110110111100111001010
31010100211112000201121020212001
4310221123122132313213022
5220322114340211440204
62140242244430541214
766525412454101240
oct6451333236674712
91110745021536761
10231545352452554
11678609180a2638
1221b7705a06780a
139c2782ca5a16a
144126bd7a14790
151bb805ca714a4
hexd296da7b79ca

231545352452554 has 32 divisors (see below), whose sum is σ = 406617590074752. Its totient is φ = 96813063648000.

The previous prime is 231545352452543. The next prime is 231545352452597. The reversal of 231545352452554 is 455254253545132.

It is a super-2 number, since 2×2315453524525542 (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231545352452495 and 231545352452504.

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, 255489094 + ... + 256393774.

It is an arithmetic number, because the mean of its divisors is an integer number (12706799689836).

Almost surely, 2231545352452554 is an apocalyptic number.

231545352452554 is a deficient number, since it is larger than the sum of its proper divisors (175072237622198).

231545352452554 is a wasteful number, since it uses less digits than its factorization.

231545352452554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350622.

The product of its digits is 72000000, while the sum is 55.

The spelling of 231545352452554 in words is "two hundred thirty-one trillion, five hundred forty-five billion, three hundred fifty-two million, four hundred fifty-two thousand, five hundred fifty-four".

Divisors: 1 2 7 14 41 82 287 574 445891 891782 904681 1809362 3121237 6242474 6332767 12665534 18281531 36563062 37091921 74183842 127970717 255941434 259643447 519286894 403389115771 806778231542 2823723810397 5647447620794 16538953746611 33077907493222 115772676226277 231545352452554