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630034979 = 7312903387
BaseRepresentation
bin100101100011011…
…001001000100011
31121220112002111212
4211203121020203
52242242104404
6142303500335
721420131450
oct4543311043
91556462455
10630034979
112a3702672
12156bb76ab
13a06b3782
145d964827
153a4a206e
hex258d9223

630034979 has 8 divisors (see below), whose sum is σ = 743267328. Its totient is φ = 522609480.

The previous prime is 630034963. The next prime is 630035039. The reversal of 630034979 is 979430036.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 630034979 - 24 = 630034963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630034949) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1451477 + ... + 1451910.

It is an arithmetic number, because the mean of its divisors is an integer number (92908416).

Almost surely, 2630034979 is an apocalyptic number.

630034979 is a deficient number, since it is larger than the sum of its proper divisors (113232349).

630034979 is a wasteful number, since it uses less digits than its factorization.

630034979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2903425.

The product of its (nonzero) digits is 122472, while the sum is 41.

The square root of 630034979 is about 25100.4975847094. The cubic root of 630034979 is about 857.2777536327.

The spelling of 630034979 in words is "six hundred thirty million, thirty-four thousand, nine hundred seventy-nine".

Divisors: 1 7 31 217 2903387 20323709 90004997 630034979