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630353313 = 3323346419
BaseRepresentation
bin100101100100100…
…110110110100001
31121221010021012000
4211210212312201
52242332301223
6142314354213
721422625522
oct4544466641
91557107160
10630353313
112a38aa857
1215712b969
13a0795635
145da08849
153a516543
hex25926da1

630353313 has 8 divisors (see below), whose sum is σ = 933856800. Its totient is φ = 420235524.

The previous prime is 630353293. The next prime is 630353359. The reversal of 630353313 is 313353036.

It is not a de Polignac number, because 630353313 - 25 = 630353281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 23346419 = 630353313 / (6 + 3 + 0 + 3 + 5 + 3 + 3 + 1 + 3).

It is not an unprimeable number, because it can be changed into a prime (630353363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11673183 + ... + 11673236.

It is an arithmetic number, because the mean of its divisors is an integer number (116732100).

Almost surely, 2630353313 is an apocalyptic number.

It is an amenable number.

630353313 is a deficient number, since it is larger than the sum of its proper divisors (303503487).

630353313 is a wasteful number, since it uses less digits than its factorization.

630353313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23346428 (or 23346422 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 27.

The square root of 630353313 is about 25106.8379729507. The cubic root of 630353313 is about 857.4221131874.

The spelling of 630353313 in words is "six hundred thirty million, three hundred fifty-three thousand, three hundred thirteen".

Divisors: 1 3 9 27 23346419 70039257 210117771 630353313