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630078 = 23195527
BaseRepresentation
bin10011001110100111110
31012000022020
42121310332
5130130303
621301010
75232651
oct2316476
91160266
10630078
113a0429
12264766
13190a37
14125898
15c6a53
hex99d3e

630078 has 16 divisors (see below), whose sum is σ = 1326720. Its totient is φ = 198936.

The previous prime is 630067. The next prime is 630101. The reversal of 630078 is 870036.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

630078 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2650 + ... + 2877.

It is an arithmetic number, because the mean of its divisors is an integer number (82920).

2630078 is an apocalyptic number.

630078 is an abundant number, since it is smaller than the sum of its proper divisors (696642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

630078 is a wasteful number, since it uses less digits than its factorization.

630078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5551.

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

The square root of 630078 is about 793.7745271801. The cubic root of 630078 is about 85.7297265833.

The spelling of 630078 in words is "six hundred thirty thousand, seventy-eight".