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632131057 = 2391130169
BaseRepresentation
bin100101101011011…
…000110111110001
31122001110120210101
4211223120313301
52243311143212
6142420432401
721444011455
oct4553306761
91561416711
10632131057
112a4904468
12157848701
13a0c6885c
145dd4c665
153a768157
hex25ad8df1

632131057 has 8 divisors (see below), whose sum is σ = 660360960. Its totient is φ = 603963360.

The previous prime is 632130991. The next prime is 632131081. The reversal of 632131057 is 750131236.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-632131057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (632134057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5869 + ... + 36037.

It is an arithmetic number, because the mean of its divisors is an integer number (82545120).

Almost surely, 2632131057 is an apocalyptic number.

It is an amenable number.

632131057 is a deficient number, since it is larger than the sum of its proper divisors (28229903).

632131057 is a wasteful number, since it uses less digits than its factorization.

632131057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31103.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 632131057 is about 25142.2166286109. The cubic root of 632131057 is about 858.2274003638.

The spelling of 632131057 in words is "six hundred thirty-two million, one hundred thirty-one thousand, fifty-seven".

Divisors: 1 23 911 20953 30169 693887 27483959 632131057