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630008011 = 1274960693
BaseRepresentation
bin100101100011010…
…010100011001011
31121220110201112001
4211203102203023
52242240224021
6142303131431
721416660023
oct4543224313
91556421461
10630008011
112a3694386
12156ba3b77
13a06a4409
145d958a83
153a499091
hex258d28cb

630008011 has 4 divisors (see below), whose sum is σ = 634968832. Its totient is φ = 625047192.

The previous prime is 630007997. The next prime is 630008017. The reversal of 630008011 is 110800036.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 630008011 - 213 = 629999819 is a prime.

It is a super-2 number, since 2×6300080112 = 793820187848352242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 630008011.

It is not an unprimeable number, because it can be changed into a prime (630008017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2480220 + ... + 2480473.

It is an arithmetic number, because the mean of its divisors is an integer number (158742208).

Almost surely, 2630008011 is an apocalyptic number.

630008011 is a deficient number, since it is larger than the sum of its proper divisors (4960821).

630008011 is a wasteful number, since it uses less digits than its factorization.

630008011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4960820.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 630008011 is about 25099.9603784548. The cubic root of 630008011 is about 857.2655218270.

Adding to 630008011 its reverse (110800036), we get a palindrome (740808047).

The spelling of 630008011 in words is "six hundred thirty million, eight thousand, eleven".

Divisors: 1 127 4960693 630008011