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812913248 = 25731167701
BaseRepresentation
bin110000011101000…
…001001001100000
32002122122021100002
4300131001021200
53131101210443
6212355315132
726100435320
oct6035011140
92078567302
10812913248
11387960834
121a82abaa8
13cc554774
1479d6b280
154b5782b8
hex30741260

812913248 has 96 divisors (see below), whose sum is σ = 1902071808. Its totient is φ = 334656000.

The previous prime is 812913247. The next prime is 812913263. The reversal of 812913248 is 842319218.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812913247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1159298 + ... + 1159998.

It is an arithmetic number, because the mean of its divisors is an integer number (19813248).

Almost surely, 2812913248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 812913248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (951035904).

812913248 is an abundant number, since it is smaller than the sum of its proper divisors (1089158560).

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

812913248 is a wasteful number, since it uses less digits than its factorization.

812913248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916 (or 908 counting only the distinct ones).

The product of its digits is 27648, while the sum is 38.

The square root of 812913248 is about 28511.6335554454. The cubic root of 812913248 is about 933.2859626751.

The spelling of 812913248 in words is "eight hundred twelve million, nine hundred thirteen thousand, two hundred forty-eight".

Divisors: 1 2 4 7 8 14 16 28 31 32 56 62 112 124 167 217 224 248 334 434 496 668 701 868 992 1169 1336 1402 1736 2338 2672 2804 3472 4676 4907 5177 5344 5608 6944 9352 9814 10354 11216 18704 19628 20708 21731 22432 36239 37408 39256 41416 43462 72478 78512 82832 86924 117067 144956 152117 157024 165664 173848 234134 289912 304234 347696 468268 579824 608468 695392 819469 936536 1159648 1216936 1638938 1873072 2433872 3277876 3629077 3746144 4867744 6555752 7258154 13111504 14516308 25403539 26223008 29032616 50807078 58065232 101614156 116130464 203228312 406456624 812913248