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630625371 = 31976914387
BaseRepresentation
bin100101100101101…
…001010001011011
31121221122002101020
4211211221101123
52242420002441
6142324253523
721425140635
oct4545512133
91557562336
10630625371
112a3a761a2
121572412a3
13a085c40c
145da79a55
153a56be66
hex2596945b

630625371 has 16 divisors (see below), whose sum is σ = 886300800. Its totient is φ = 397744128.

The previous prime is 630625361. The next prime is 630625393. The reversal of 630625371 is 173526036.

630625371 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 630625371 - 27 = 630625243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (630625351) 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, 36640 + ... + 51026.

It is an arithmetic number, because the mean of its divisors is an integer number (55393800).

Almost surely, 2630625371 is an apocalyptic number.

630625371 is a deficient number, since it is larger than the sum of its proper divisors (255675429).

630625371 is a wasteful number, since it uses less digits than its factorization.

630625371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15178.

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 630625371 is about 25112.2553945280. The cubic root of 630625371 is about 857.5454487778.

The spelling of 630625371 in words is "six hundred thirty million, six hundred twenty-five thousand, three hundred seventy-one".

Divisors: 1 3 19 57 769 2307 14387 14611 43161 43833 273353 820059 11063603 33190809 210208457 630625371