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631472007 = 33713143427
BaseRepresentation
bin100101101000110…
…111111110000111
31122000020002202010
4211220313332013
52243124101012
6142354345303
721435265155
oct4550677607
91560202663
10631472007
112a44a42a1
1215758b233
13a0a9789a
145dc1a3d5
153a687c3c
hex25a37f87

631472007 has 16 divisors (see below), whose sum is σ = 871339392. Its totient is φ = 406467360.

The previous prime is 631471993. The next prime is 631472027. The reversal of 631472007 is 700274136.

It is not a de Polignac number, because 631472007 - 215 = 631439239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631472027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7173 + ... + 36254.

It is an arithmetic number, because the mean of its divisors is an integer number (54458712).

Almost surely, 2631472007 is an apocalyptic number.

631472007 is a deficient number, since it is larger than the sum of its proper divisors (239867385).

631472007 is a wasteful number, since it uses less digits than its factorization.

631472007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43598.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 631472007 is about 25129.1067688448. The cubic root of 631472007 is about 857.9290384746.

The spelling of 631472007 in words is "six hundred thirty-one million, four hundred seventy-two thousand, seven".

Divisors: 1 3 37 111 131 393 4847 14541 43427 130281 1606799 4820397 5688937 17066811 210490669 631472007