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630207260 = 22531510363
BaseRepresentation
bin100101100100000…
…011001100011100
31121220211211211122
4211210003030130
52242313113020
6142311310112
721421446644
oct4544031434
91556754748
10630207260
112a3810051
1215707b338
13a0744007
145d9ab524
153a4d8125
hex2590331c

630207260 has 12 divisors (see below), whose sum is σ = 1323435288. Its totient is φ = 252082896.

The previous prime is 630207239. The next prime is 630207283. The reversal of 630207260 is 62702036.

It is a super-2 number, since 2×6302072602 = 794322381113415200, which contains 22 as substring.

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, 15755162 + ... + 15755201.

It is an arithmetic number, because the mean of its divisors is an integer number (110286274).

Almost surely, 2630207260 is an apocalyptic number.

It is an amenable number.

630207260 is an abundant number, since it is smaller than the sum of its proper divisors (693228028).

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

630207260 is a wasteful number, since it uses less digits than its factorization.

630207260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31510372 (or 31510370 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 630207260 is about 25103.9291745336. The cubic root of 630207260 is about 857.3558864421.

Adding to 630207260 its reverse (62702036), we get a palindrome (692909296).

The spelling of 630207260 in words is "six hundred thirty million, two hundred seven thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 31510363 63020726 126041452 157551815 315103630 630207260