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231553492683745 = 5293356351443543
BaseRepresentation
bin110100101001100010111111…
…101011011000101111100001
31010100212022001000212211210011
4310221202333223120233201
5220322233023111334440
62140250112300204521
766526121256653551
oct6451427753305741
91110768030784704
10231553492683745
116786431503a831
1221b78750239741
139c2852935b8cb
14412736ab83161
151bb838751b9ea
hexd298bfad8be1

231553492683745 has 16 divisors (see below), whose sum is σ = 278813944184832. Its totient is φ = 184609631905600.

The previous prime is 231553492683701. The next prime is 231553492683787. The reversal of 231553492683745 is 547386294355132.

It is a de Polignac number, because none of the positive numbers 2k-231553492683745 is a prime.

It is a super-2 number, since 2×2315534926837452 (a number of 30 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 15 ways as a sum of consecutive naturals, for example, 521832444 + ... + 522275986.

It is an arithmetic number, because the mean of its divisors is an integer number (17425871511552).

Almost surely, 2231553492683745 is an apocalyptic number.

It is an amenable number.

231553492683745 is a deficient number, since it is larger than the sum of its proper divisors (47260451501087).

231553492683745 is a wasteful number, since it uses less digits than its factorization.

231553492683745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800192.

The product of its digits is 653184000, while the sum is 67.

The spelling of 231553492683745 in words is "two hundred thirty-one trillion, five hundred fifty-three billion, four hundred ninety-two million, six hundred eighty-three thousand, seven hundred forty-five".

Divisors: 1 5 293 1465 356351 443543 1781755 2217715 104410843 129958099 522054215 649790495 158056991593 790284957965 46310698536749 231553492683745