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630695 = 51331313
BaseRepresentation
bin10011001111110100111
31012001011002
42121332213
5130140240
621303515
75234522
oct2317647
91161132
10630695
113a093a
12264b9b
131910c0
14125bb9
15c6d15
hex99fa7

630695 has 16 divisors (see below), whose sum is σ = 844032. Its totient is φ = 449280.

The previous prime is 630689. The next prime is 630701. The reversal of 630695 is 596036.

It is an interprime number because it is at equal distance from previous prime (630689) and next prime (630701).

It is not a de Polignac number, because 630695 - 212 = 626599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1859 + ... + 2171.

It is an arithmetic number, because the mean of its divisors is an integer number (52752).

2630695 is an apocalyptic number.

630695 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

630695 is a deficient number, since it is larger than the sum of its proper divisors (213337).

630695 is a wasteful number, since it uses less digits than its factorization.

630695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 630695 is about 794.1630814889. The cubic root of 630695 is about 85.7577008896.

The spelling of 630695 in words is "six hundred thirty thousand, six hundred ninety-five".

Divisors: 1 5 13 31 65 155 313 403 1565 2015 4069 9703 20345 48515 126139 630695