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814959930 = 23531876301
BaseRepresentation
bin110000100100110…
…100110100111010
32002210111020212010
4300210310310322
53132112204210
6212511230350
726124021321
oct6044646472
92083436763
10814959930
11389029504
121a8b183b6
13ccac0215
147a3410b8
154b82e920
hex30934d3a

814959930 has 32 divisors (see below), whose sum is σ = 2018999808. Its totient is φ = 210312000.

The previous prime is 814959907. The next prime is 814959947. The reversal of 814959930 is 39959418.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 814959930.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 437221 + ... + 439080.

It is an arithmetic number, because the mean of its divisors is an integer number (63093744).

Almost surely, 2814959930 is an apocalyptic number.

814959930 is an abundant number, since it is smaller than the sum of its proper divisors (1204039878).

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

814959930 is a wasteful number, since it uses less digits than its factorization.

814959930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876342.

The product of its (nonzero) digits is 349920, while the sum is 48.

The square root of 814959930 is about 28547.5030431735. The cubic root of 814959930 is about 934.0685548984.

The spelling of 814959930 in words is "eight hundred fourteen million, nine hundred fifty-nine thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 155 186 310 465 930 876301 1752602 2628903 4381505 5257806 8763010 13144515 26289030 27165331 54330662 81495993 135826655 162991986 271653310 407479965 814959930