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82717146 = 2331980621
BaseRepresentation
bin1001110111000…
…10100111011010
312202122110121000
410323202213122
5132133422041
612112525430
72023040601
oct473424732
9182573530
1082717146
1142767686
1223850876
13141a2075
14adb2a38
1573ddbb6
hex4ee29da

82717146 has 32 divisors (see below), whose sum is σ = 193492800. Its totient is φ = 26120880.

The previous prime is 82717139. The next prime is 82717169. The reversal of 82717146 is 64171728.

It is a self number, because there is not a number n which added to its sum of digits gives 82717146.

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, 39285 + ... + 41336.

It is an arithmetic number, because the mean of its divisors is an integer number (6046650).

Almost surely, 282717146 is an apocalyptic number.

82717146 is an abundant number, since it is smaller than the sum of its proper divisors (110775654).

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

82717146 is a wasteful number, since it uses less digits than its factorization.

82717146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80651 (or 80645 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 82717146 is about 9094.8967008977. The cubic root of 82717146 is about 435.7109894838.

The spelling of 82717146 in words is "eighty-two million, seven hundred seventeen thousand, one hundred forty-six".

Divisors: 1 2 3 6 9 18 19 27 38 54 57 114 171 342 513 1026 80621 161242 241863 483726 725589 1451178 1531799 2176767 3063598 4353534 4595397 9190794 13786191 27572382 41358573 82717146