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630933 = 31911069
BaseRepresentation
bin10011010000010010101
31012001110220
42122002111
5130142213
621304553
75235312
oct2320225
91161426
10630933
113a1036
12265159
13191244
14125d09
15c6e23
hex9a095

630933 has 8 divisors (see below), whose sum is σ = 885600. Its totient is φ = 398448.

The previous prime is 630919. The next prime is 630941. The reversal of 630933 is 339036.

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

It is not a de Polignac number, because 630933 - 25 = 630901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630433) 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, 5478 + ... + 5591.

It is an arithmetic number, because the mean of its divisors is an integer number (110700).

2630933 is an apocalyptic number.

It is an amenable number.

630933 is a deficient number, since it is larger than the sum of its proper divisors (254667).

630933 is a wasteful number, since it uses less digits than its factorization.

630933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11091.

The product of its (nonzero) digits is 1458, while the sum is 24.

The square root of 630933 is about 794.3129106341. The cubic root of 630933 is about 85.7684867507.

Adding to 630933 its reverse (339036), we get a palindrome (969969).

The spelling of 630933 in words is "six hundred thirty thousand, nine hundred thirty-three".

Divisors: 1 3 19 57 11069 33207 210311 630933