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630075264 = 27371321973
BaseRepresentation
bin100101100011100…
…010111110000000
31121220121010202220
4211203202332000
52242244402024
6142304411040
721420360060
oct4543427600
91556533686
10630075264
112a372a965
12157016a80
13a06c8c00
145d9753a0
153a4ade79
hex258e2f80

630075264 has 384 divisors, whose sum is σ = 2210054400. Its totient is φ = 155271168.

The previous prime is 630075253. The next prime is 630075311. The reversal of 630075264 is 462570036.

It is a tau number, because it is divible by the number of its divisors (384).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8631132 + ... + 8631204.

It is an arithmetic number, because the mean of its divisors is an integer number (5755350).

Almost surely, 2630075264 is an apocalyptic number.

630075264 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630075264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1105027200).

630075264 is an abundant number, since it is smaller than the sum of its proper divisors (1579979136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

630075264 is a wasteful number, since it uses less digits than its factorization.

630075264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 630075264 is about 25101.3000460136. The cubic root of 630075264 is about 857.2960249454.

The spelling of 630075264 in words is "six hundred thirty million, seventy-five thousand, two hundred sixty-four".