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630421130 = 2563042113
BaseRepresentation
bin100101100100110…
…111011010001010
31121221020201012202
4211210313122022
52242341434010
6142320040202
721423330323
oct4544673212
91557221182
10630421130
112a39467a9
12157163062
13a07ba471
145da2544a
153a52b6a5
hex2593768a

630421130 has 8 divisors (see below), whose sum is σ = 1134758052. Its totient is φ = 252168448.

The previous prime is 630421109. The next prime is 630421163. The reversal of 630421130 is 31124036.

630421130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 627452401 + 2968729 = 25049^2 + 1723^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31521047 + ... + 31521066.

Almost surely, 2630421130 is an apocalyptic number.

630421130 is a deficient number, since it is larger than the sum of its proper divisors (504336922).

630421130 is a wasteful number, since it uses less digits than its factorization.

630421130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63042120.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 630421130 is about 25108.1885049479. The cubic root of 630421130 is about 857.4528608698.

Adding to 630421130 its reverse (31124036), we get a palindrome (661545166).

The spelling of 630421130 in words is "six hundred thirty million, four hundred twenty-one thousand, one hundred thirty".

Divisors: 1 2 5 10 63042113 126084226 315210565 630421130