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631430074 = 211132121727
BaseRepresentation
bin100101101000101…
…101101110111010
31122000010222020001
4211220231232322
52243121230244
6142353423214
721435032002
oct4550555672
91560128201
10631430074
112a4475840
1215756ab0a
13a0a81782
145dc09002
153a67a5d4
hex25a2dbba

631430074 has 16 divisors (see below), whose sum is σ = 1034078976. Its totient is φ = 286783200.

The previous prime is 631430069. The next prime is 631430089. The reversal of 631430074 is 470034136.

It is an unprimeable number.

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, 18199 + ... + 39925.

It is an arithmetic number, because the mean of its divisors is an integer number (64629936).

Almost surely, 2631430074 is an apocalyptic number.

631430074 is a deficient number, since it is larger than the sum of its proper divisors (402648902).

631430074 is a wasteful number, since it uses less digits than its factorization.

631430074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23061.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 631430074 is about 25128.2724038084. The cubic root of 631430074 is about 857.9100477491.

The spelling of 631430074 in words is "six hundred thirty-one million, four hundred thirty thousand, seventy-four".

Divisors: 1 2 11 22 1321 2642 14531 21727 29062 43454 238997 477994 28701367 57402734 315715037 631430074