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829900864 = 261322772
BaseRepresentation
bin110001011101110…
…100100001000000
32010211121022222001
4301131310201000
53144423311424
6214203353344
726365020022
oct6135644100
92124538861
10829900864
11396503891
121b1b22854
13102c21a00
147c310012
154ccd1844
hex31774840

829900864 has 63 divisors (see below), whose sum is σ = 1789719687. Its totient is φ = 381648384.

The previous prime is 829900823. The next prime is 829900873. The reversal of 829900864 is 468009928.

The square root of 829900864 is 28808.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 383846464 + 446054400 = 19592^2 + 21120^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2995894 + ... + 2996170.

It is an arithmetic number, because the mean of its divisors is an integer number (28408249).

Almost surely, 2829900864 is an apocalyptic number.

829900864 is the 28808-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 829900864

829900864 is an abundant number, since it is smaller than the sum of its proper divisors (959818823).

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

829900864 is an equidigital number, since it uses as much as digits as its factorization.

829900864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 46.

The cubic root of 829900864 is about 939.7422199436.

The spelling of 829900864 in words is "eight hundred twenty-nine million, nine hundred thousand, eight hundred sixty-four".

Divisors: 1 2 4 8 13 16 26 32 52 64 104 169 208 277 338 416 554 676 832 1108 1352 2216 2704 3601 4432 5408 7202 8864 10816 14404 17728 28808 46813 57616 76729 93626 115232 153458 187252 230464 306916 374504 613832 749008 997477 1227664 1498016 1994954 2455328 2996032 3989908 4910656 7979816 12967201 15959632 25934402 31919264 51868804 63838528 103737608 207475216 414950432 829900864