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631052732 = 22239660097
BaseRepresentation
bin100101100111010…
…001100110111100
31121222102210121102
4211213101212330
52243022141412
6142341352232
721431600612
oct4547214674
91558383542
10631052732
112a4238292
12157408678
13a097baab
145db4b6b2
153a6038c2
hex259d19bc

631052732 has 12 divisors (see below), whose sum is σ = 1108964640. Its totient is φ = 314205696.

The previous prime is 631052701. The next prime is 631052761. The reversal of 631052732 is 237250136.

It is a junction number, because it is equal to n+sod(n) for n = 631052695 and 631052704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329093 + ... + 331004.

It is an arithmetic number, because the mean of its divisors is an integer number (92413720).

Almost surely, 2631052732 is an apocalyptic number.

It is an amenable number.

631052732 is a deficient number, since it is larger than the sum of its proper divisors (477911908).

631052732 is a wasteful number, since it uses less digits than its factorization.

631052732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660340 (or 660338 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 631052732 is about 25120.7629661203. The cubic root of 631052732 is about 857.7391182912.

The spelling of 631052732 in words is "six hundred thirty-one million, fifty-two thousand, seven hundred thirty-two".

Divisors: 1 2 4 239 478 956 660097 1320194 2640388 157763183 315526366 631052732