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630087 = 31391511
BaseRepresentation
bin10011001110101000111
31012000022120
42121311013
5130130322
621301023
75232663
oct2316507
91160276
10630087
113a0437
12264773
13190a43
141258a3
15c6a5c
hex99d47

630087 has 8 divisors (see below), whose sum is σ = 846720. Its totient is φ = 416760.

The previous prime is 630067. The next prime is 630101. The reversal of 630087 is 780036.

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

It is not a de Polignac number, because 630087 - 26 = 630023 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339 + ... + 1172.

It is an arithmetic number, because the mean of its divisors is an integer number (105840).

2630087 is an apocalyptic number.

630087 is a deficient number, since it is larger than the sum of its proper divisors (216633).

630087 is a wasteful number, since it uses less digits than its factorization.

630087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1653.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 630087 is about 793.7801962760. The cubic root of 630087 is about 85.7301347677.

The spelling of 630087 in words is "six hundred thirty thousand, eighty-seven".

Divisors: 1 3 139 417 1511 4533 210029 630087