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630437349 = 31607130769
BaseRepresentation
bin100101100100111…
…011010111100101
31121221021112110110
4211210323113211
52242342443344
6142320243233
721423425523
oct4544732745
91557245413
10630437349
112a3957a03
12157170519
13a07c4969
145da2b313
153a5313b9
hex2593b5e5

630437349 has 8 divisors (see below), whose sum is σ = 841112640. Its totient is φ = 420026816.

The previous prime is 630437341. The next prime is 630437389. The reversal of 630437349 is 943734036.

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 630437349 - 23 = 630437341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630437341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60564 + ... + 70205.

It is an arithmetic number, because the mean of its divisors is an integer number (105139080).

Almost surely, 2630437349 is an apocalyptic number.

It is an amenable number.

630437349 is a deficient number, since it is larger than the sum of its proper divisors (210675291).

630437349 is a wasteful number, since it uses less digits than its factorization.

630437349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132379.

The product of its (nonzero) digits is 163296, while the sum is 39.

The square root of 630437349 is about 25108.5114851518. The cubic root of 630437349 is about 857.4602141072.

The spelling of 630437349 in words is "six hundred thirty million, four hundred thirty-seven thousand, three hundred forty-nine".

Divisors: 1 3 1607 4821 130769 392307 210145783 630437349