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2664970831 = 23313737687
BaseRepresentation
bin1001111011011000…
…0011101001001111
320212201121112201101
42132312003221033
520424213031311
61120235323531
7123016610155
oct23666035117
96781545641
102664970831
111148341036
126245b05a7
13336170623
141b3d153d5
15108e65ec1
hex9ed83a4f

2664970831 has 8 divisors (see below), whose sum is σ = 2870544384. Its totient is φ = 2466872760.

The previous prime is 2664970807. The next prime is 2664970873. The reversal of 2664970831 is 1380794662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2664970831 - 27 = 2664970703 is a prime.

It is a super-2 number, since 2×26649708312 = 14204139060161661122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2664970331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1868131 + ... + 1869556.

It is an arithmetic number, because the mean of its divisors is an integer number (358818048).

Almost surely, 22664970831 is an apocalyptic number.

2664970831 is a deficient number, since it is larger than the sum of its proper divisors (205573553).

2664970831 is a wasteful number, since it uses less digits than its factorization.

2664970831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3737741.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 2664970831 is about 51623.3554798601. The cubic root of 2664970831 is about 1386.4285296717.

The spelling of 2664970831 in words is "two billion, six hundred sixty-four million, nine hundred seventy thousand, eight hundred thirty-one".

Divisors: 1 23 31 713 3737687 85966801 115868297 2664970831