Search a number
-
+
630006937 = 790000991
BaseRepresentation
bin100101100011010…
…010010010011001
31121220110200001021
4211203102102121
52242240210222
6142303122441
721416653630
oct4543222231
91556420037
10630006937
112a369359a
12156ba3421
13a06a3a91
145d958517
153a498ac7
hex258d2499

630006937 has 4 divisors (see below), whose sum is σ = 720007936. Its totient is φ = 540005940.

The previous prime is 630006929. The next prime is 630006953. The reversal of 630006937 is 739600036.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 630006937 - 23 = 630006929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630006907) 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 3 ways as a sum of consecutive naturals, for example, 45000489 + ... + 45000502.

It is an arithmetic number, because the mean of its divisors is an integer number (180001984).

Almost surely, 2630006937 is an apocalyptic number.

It is an amenable number.

630006937 is a deficient number, since it is larger than the sum of its proper divisors (90000999).

630006937 is an equidigital number, since it uses as much as digits as its factorization.

630006937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90000998.

The product of its (nonzero) digits is 20412, while the sum is 34.

The square root of 630006937 is about 25099.9389839896. The cubic root of 630006937 is about 857.2650346884.

The spelling of 630006937 in words is "six hundred thirty million, six thousand, nine hundred thirty-seven".

Divisors: 1 7 90000991 630006937