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811029934 = 2111319149251
BaseRepresentation
bin110000010101110…
…101010110101110
32002112002120220201
4300111311112232
53130110424214
6212251104114
726045432521
oct6025652656
92075076821
10811029934
11386894880
121a774203a
13cc045490
14799dabb8
154b305274
hex305755ae

811029934 has 32 divisors (see below), whose sum is σ = 1504460160. Its totient is φ = 322380000.

The previous prime is 811029917. The next prime is 811029943. The reversal of 811029934 is 439920118.

It is a junction number, because it is equal to n+sod(n) for n = 811029893 and 811029902.

It is a congruent number.

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, 69192 + ... + 80059.

It is an arithmetic number, because the mean of its divisors is an integer number (47014380).

Almost surely, 2811029934 is an apocalyptic number.

811029934 is a deficient number, since it is larger than the sum of its proper divisors (693430226).

811029934 is a wasteful number, since it uses less digits than its factorization.

811029934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149296.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 811029934 is about 28478.5872894004. The cubic root of 811029934 is about 932.5646763498.

The spelling of 811029934 in words is "eight hundred eleven million, twenty-nine thousand, nine hundred thirty-four".

Divisors: 1 2 11 13 19 22 26 38 143 209 247 286 418 494 2717 5434 149251 298502 1641761 1940263 2835769 3283522 3880526 5671538 21342893 31193459 36864997 42685786 62386918 73729994 405514967 811029934