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630763225 = 5250232
BaseRepresentation
bin100101100110001…
…010111011011001
31121221220002110221
4211212022323121
52242433410400
6142331240041
721426253561
oct4546127331
91557802427
10630763225
112a405a824
121572a9021
13a08aa0a1
145dab3da1
153a597c1a
hex2598aed9

630763225 has 9 divisors (see below), whose sum is σ = 782302143. Its totient is φ = 504510120.

The previous prime is 630763213. The next prime is 630763307. The reversal of 630763225 is 522367036.

The square root of 630763225 is 25115.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 227074761 + 403688464 = 15069^2 + 20092^2 .

It is not a de Polignac number, because 630763225 - 229 = 93892313 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 123064 + ... + 128086.

Almost surely, 2630763225 is an apocalyptic number.

630763225 is the 25115-th square number.

630763225 is the 12558-th centered octagonal number.

It is an amenable number.

630763225 is a deficient number, since it is larger than the sum of its proper divisors (151538918).

630763225 is an frugal number, since it uses more digits than its factorization.

630763225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10056 (or 5028 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 34.

The cubic root of 630763225 is about 857.6079303836.

The spelling of 630763225 in words is "six hundred thirty million, seven hundred sixty-three thousand, two hundred twenty-five".

Divisors: 1 5 25 5023 25115 125575 25230529 126152645 630763225