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631430467 = 637399079
BaseRepresentation
bin100101101000101…
…101110101000011
31122000010222202121
4211220231311003
52243121233332
6142353425111
721435033103
oct4550556503
91560128677
10631430467
112a4476068
1215756b197
13a0a819c5
145dc09203
153a67a797
hex25a2dd43

631430467 has 4 divisors (see below), whose sum is σ = 631535920. Its totient is φ = 631325016.

The previous prime is 631430441. The next prime is 631430519. The reversal of 631430467 is 764034136.

631430467 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 631430467 - 227 = 497212739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (631430407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43167 + ... + 55912.

It is an arithmetic number, because the mean of its divisors is an integer number (157883980).

Almost surely, 2631430467 is an apocalyptic number.

631430467 is a deficient number, since it is larger than the sum of its proper divisors (105453).

631430467 is an equidigital number, since it uses as much as digits as its factorization.

631430467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105452.

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 631430467 is about 25128.2802236842. The cubic root of 631430467 is about 857.9102257358.

The spelling of 631430467 in words is "six hundred thirty-one million, four hundred thirty thousand, four hundred sixty-seven".

Divisors: 1 6373 99079 631430467