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632015997 = 31319159721
BaseRepresentation
bin100101101010111…
…100110001111101
31122001020201221220
4211222330301331
52243244002442
6142414143553
721443022144
oct4552746175
91561221856
10632015997
112a4835a78
121577b1bb9
13a0c28382
145dd1c75b
153a743eec
hex25abcc7d

632015997 has 8 divisors (see below), whose sum is σ = 843332160. Its totient is φ = 421021920.

The previous prime is 632015977. The next prime is 632016001. The reversal of 632015997 is 799510236.

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

It is not a de Polignac number, because 632015997 - 26 = 632015933 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (632015947) 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, 75904 + ... + 83817.

It is an arithmetic number, because the mean of its divisors is an integer number (105416520).

Almost surely, 2632015997 is an apocalyptic number.

It is an amenable number.

632015997 is a deficient number, since it is larger than the sum of its proper divisors (211316163).

632015997 is a wasteful number, since it uses less digits than its factorization.

632015997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161043.

The product of its (nonzero) digits is 102060, while the sum is 42.

The square root of 632015997 is about 25139.9283411867. The cubic root of 632015997 is about 858.1753259111.

The spelling of 632015997 in words is "six hundred thirty-two million, fifteen thousand, nine hundred ninety-seven".

Divisors: 1 3 1319 3957 159721 479163 210671999 632015997