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231066806670523 = 3138533613239539
BaseRepresentation
bin110100100010011101101110…
…111011100101010010111011
31010022010202211001021201220001
4310202131232323211102323
5220241244310001424043
62135234343042013431
766446011606054165
oct6442355673452273
91108122731251801
10231066806670523
116769697851469a
1221aba366047277
139bc1677669a25
14410b99bc9d935
151baa8a06ad74d
hexd2276eee54bb

231066806670523 has 16 divisors (see below), whose sum is σ = 232141994899360. Its totient is φ = 229993916914944.

The previous prime is 231066806670499. The next prime is 231066806670527. The reversal of 231066806670523 is 325076608660132.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-231066806670523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231066806670527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 964511488 + ... + 964751026.

It is an arithmetic number, because the mean of its divisors is an integer number (14508874681210).

Almost surely, 2231066806670523 is an apocalyptic number.

231066806670523 is a deficient number, since it is larger than the sum of its proper divisors (1075188228837).

231066806670523 is a wasteful number, since it uses less digits than its factorization.

231066806670523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244318.

The product of its (nonzero) digits is 13063680, while the sum is 55.

The spelling of 231066806670523 in words is "two hundred thirty-one trillion, sixty-six billion, eight hundred six million, six hundred seventy thousand, five hundred twenty-three".

Divisors: 1 313 853 3613 239539 266989 1130869 3081889 74975707 204326767 865454407 964631257 63954278071 270887229391 738232609171 231066806670523