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632700081 = 32135407693
BaseRepresentation
bin100101101101100…
…011110010110001
31122002112111100100
4211231203302301
52243432400311
6142440543013
721451601436
oct4555436261
91562474310
10632700081
112a5162a32
12157a81a69
13a1107860
1460059b8d
153a82ba56
hex25b63cb1

632700081 has 12 divisors (see below), whose sum is σ = 984200308. Its totient is φ = 389353824.

The previous prime is 632700073. The next prime is 632700097. The reversal of 632700081 is 180007236.

It can be written as a sum of positive squares in 2 ways, for example, as 386712225 + 245987856 = 19665^2 + 15684^2 .

It is not a de Polignac number, because 632700081 - 23 = 632700073 is a prime.

It is a super-2 number, since 2×6327000812 = 800618784994813122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (632700071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2703730 + ... + 2703963.

Almost surely, 2632700081 is an apocalyptic number.

It is an amenable number.

632700081 is a deficient number, since it is larger than the sum of its proper divisors (351500227).

632700081 is a wasteful number, since it uses less digits than its factorization.

632700081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5407712 (or 5407709 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 632700081 is about 25153.5301896175. The cubic root of 632700081 is about 858.4848393465.

The spelling of 632700081 in words is "six hundred thirty-two million, seven hundred thousand, eighty-one".

Divisors: 1 3 9 13 39 117 5407693 16223079 48669237 70300009 210900027 632700081