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630008870 = 25234166809
BaseRepresentation
bin100101100011010…
…010110000100110
31121220110202200212
4211203102300212
52242240240440
6142303135422
721416662361
oct4543226046
91556422625
10630008870
112a3694a97
12156ba4572
13a06a491a
145d9590d8
153a499465
hex258d2c26

630008870 has 32 divisors (see below), whose sum is σ = 1212200640. Its totient is φ = 235164160.

The previous prime is 630008857. The next prime is 630008881. The reversal of 630008870 is 78800036.

It is a super-2 number, since 2×6300088702 = 793822352557353800, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 23975 + ... + 42834.

It is an arithmetic number, because the mean of its divisors is an integer number (37881270).

Almost surely, 2630008870 is an apocalyptic number.

630008870 is a deficient number, since it is larger than the sum of its proper divisors (582191770).

630008870 is a wasteful number, since it uses less digits than its factorization.

630008870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66880.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 630008870 is about 25099.9774900297. The cubic root of 630008870 is about 857.2659114468.

The spelling of 630008870 in words is "six hundred thirty million, eight thousand, eight hundred seventy".

Divisors: 1 2 5 10 23 41 46 82 115 205 230 410 943 1886 4715 9430 66809 133618 334045 668090 1536607 2739169 3073214 5478338 7683035 13695845 15366070 27391690 63000887 126001774 315004435 630008870