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231504663151 = 2329609156983
BaseRepresentation
bin1101011110011011000…
…0001101001001101111
3211010112221212101200101
43113212300031021233
512243110143210101
6254203552211531
722503621111616
oct3274660151157
9733487771611
10231504663151
118a1a938a9a3
1238a4a539ba7
1318aa5349ba8
14b2c22c487d
15604e219401
hex35e6c0d26f

231504663151 has 16 divisors (see below), whose sum is σ = 249945500160. Its totient is φ = 213764554080.

The previous prime is 231504663149. The next prime is 231504663217. The reversal of 231504663151 is 151366405132.

It is not a de Polignac number, because 231504663151 - 21 = 231504663149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231504663151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231504663451) 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, 4034206 + ... + 4091188.

It is an arithmetic number, because the mean of its divisors is an integer number (15621593760).

Almost surely, 2231504663151 is an apocalyptic number.

231504663151 is a deficient number, since it is larger than the sum of its proper divisors (18440837009).

231504663151 is a wasteful number, since it uses less digits than its factorization.

231504663151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63126.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 231504663151 in words is "two hundred thirty-one billion, five hundred four million, six hundred sixty-three thousand, one hundred fifty-one".

Divisors: 1 23 29 667 6091 56983 140093 176639 1310609 1652507 4062697 38007661 347083453 7982919419 10065420137 231504663151