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630801013 = 2343637817
BaseRepresentation
bin100101100110010…
…100001001110101
31121221222000022111
4211212110021311
52242441113023
6142332131021
721426502003
oct4546241165
91557860274
10630801013
112a4086157
12157306a71
13a08c134b
145dac3a73
153a5a400d
hex25994275

630801013 has 8 divisors (see below), whose sum is σ = 673535808. Its totient is φ = 589341984.

The previous prime is 630801001. The next prime is 630801023. The reversal of 630801013 is 310108036.

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 630801013 - 225 = 597246581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630801023) 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, 317920 + ... + 319897.

It is an arithmetic number, because the mean of its divisors is an integer number (84191976).

Almost surely, 2630801013 is an apocalyptic number.

It is an amenable number.

630801013 is a deficient number, since it is larger than the sum of its proper divisors (42734795).

630801013 is a wasteful number, since it uses less digits than its factorization.

630801013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637883.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 630801013 is about 25115.7522881557. The cubic root of 630801013 is about 857.6250560075.

Adding to 630801013 its reverse (310108036), we get a palindrome (940909049).

The spelling of 630801013 in words is "six hundred thirty million, eight hundred one thousand, thirteen".

Divisors: 1 23 43 989 637817 14669791 27426131 630801013