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231341678945 = 51350357712263
BaseRepresentation
bin1101011101110100001…
…0011110000101100001
3211010010121011221101022
43113131002132011201
512242241432211240
6254135451015225
722466601553166
oct3273502360541
9733117157338
10231341678945
118a12538a503
1238a03a3a515
1318a7a653030
14b2a87ba06d
15603ec729b5
hex35dd09e161

231341678945 has 32 divisors (see below), whose sum is σ = 300102630912. Its totient is φ = 170187927552.

The previous prime is 231341678927. The next prime is 231341678959. The reversal of 231341678945 is 549876143132.

231341678945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 231341678945 - 230 = 230267937121 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18858884 + ... + 18871146.

It is an arithmetic number, because the mean of its divisors is an integer number (9378207216).

Almost surely, 2231341678945 is an apocalyptic number.

It is an amenable number.

231341678945 is a deficient number, since it is larger than the sum of its proper divisors (68760951967).

231341678945 is a wasteful number, since it uses less digits than its factorization.

231341678945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13361.

The product of its digits is 4354560, while the sum is 53.

The spelling of 231341678945 in words is "two hundred thirty-one billion, three hundred forty-one million, six hundred seventy-eight thousand, nine hundred forty-five".

Divisors: 1 5 13 65 503 577 2515 2885 6539 7501 12263 32695 37505 61315 159419 290231 797095 1451155 3773003 6168289 7075751 18865015 30841445 35378755 80187757 91984763 400938785 459923815 3559102753 17795513765 46268335789 231341678945