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82795572 = 223212771801
BaseRepresentation
bin1001110111101…
…01110000110100
312202210110011200
410323311300310
5132143424242
612114332500
72023515336
oct473656064
9182713150
1082795572
11428105a2
122388a130
13141cb982
14add3456
15740704c
hex4ef5c34

82795572 has 36 divisors (see below), whose sum is σ = 209568996. Its totient is φ = 27561600.

The previous prime is 82795553. The next prime is 82795591. The reversal of 82795572 is 27559728.

It is a happy number.

82795572 is a `hidden beast` number, since 8 + 2 + 79 + 5 + 572 = 666.

It is an interprime number because it is at equal distance from previous prime (82795553) and next prime (82795591).

It can be written as a sum of positive squares in 2 ways, for example, as 30869136 + 51926436 = 5556^2 + 7206^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×827955723 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45072 + ... + 46872.

It is an arithmetic number, because the mean of its divisors is an integer number (5821361).

Almost surely, 282795572 is an apocalyptic number.

It is an amenable number.

82795572 is an abundant number, since it is smaller than the sum of its proper divisors (126773424).

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

82795572 is a wasteful number, since it uses less digits than its factorization.

82795572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3088 (or 3083 counting only the distinct ones).

The product of its digits is 352800, while the sum is 45.

The square root of 82795572 is about 9099.2072182141. The cubic root of 82795572 is about 435.8486484736.

The spelling of 82795572 in words is "eighty-two million, seven hundred ninety-five thousand, five hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 36 1277 1801 2554 3602 3831 5108 5403 7204 7662 10806 11493 15324 16209 21612 22986 32418 45972 64836 2299877 4599754 6899631 9199508 13799262 20698893 27598524 41397786 82795572