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630192984 = 23331184431
BaseRepresentation
bin100101100011111…
…111101101011000
31121220211010020220
4211203333231120
52242312133414
6142311120040
721421360221
oct4543775530
91556733226
10630192984
112a3800353
12157073020
13a073a675
145d9a6248
153a4d3ca9
hex258ffb58

630192984 has 32 divisors (see below), whose sum is σ = 1580567040. Its totient is φ = 209386400.

The previous prime is 630192961. The next prime is 630192989. The reversal of 630192984 is 489291036.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630192989) 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, 34752 + ... + 49679.

It is an arithmetic number, because the mean of its divisors is an integer number (49392720).

Almost surely, 2630192984 is an apocalyptic number.

It is an amenable number.

630192984 is an abundant number, since it is smaller than the sum of its proper divisors (950374056).

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

630192984 is a wasteful number, since it uses less digits than its factorization.

630192984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84751 (or 84747 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 630192984 is about 25103.6448349637. The cubic root of 630192984 is about 857.3494125375.

The spelling of 630192984 in words is "six hundred thirty million, one hundred ninety-two thousand, nine hundred eighty-four".

Divisors: 1 2 3 4 6 8 12 24 311 622 933 1244 1866 2488 3732 7464 84431 168862 253293 337724 506586 675448 1013172 2026344 26258041 52516082 78774123 105032164 157548246 210064328 315096492 630192984