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82431852 = 22331713121
BaseRepresentation
bin1001110100111…
…00111101101100
312202002222020120
410322130331230
5132100304402
612102444540
72020442046
oct472347554
9182088216
1082431852
11425922a8
1223733750
1314102259
14ad3aa96
1573843bc
hex4e9cf6c

82431852 has 48 divisors (see below), whose sum is σ = 201406464. Its totient is φ = 26208000.

The previous prime is 82431847. The next prime is 82431859. The reversal of 82431852 is 25813428.

It is not an unprimeable number, because it can be changed into a prime (82431859) 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, 24852 + ... + 27972.

It is an arithmetic number, because the mean of its divisors is an integer number (4195968).

Almost surely, 282431852 is an apocalyptic number.

It is an amenable number.

82431852 is an abundant number, since it is smaller than the sum of its proper divisors (118974612).

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

82431852 is a wasteful number, since it uses less digits than its factorization.

82431852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3230 (or 3228 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 82431852 is about 9079.1988633359. The cubic root of 82431852 is about 435.2094855717.

The spelling of 82431852 in words is "eighty-two million, four hundred thirty-one thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 12 31 62 71 93 124 142 186 213 284 372 426 852 2201 3121 4402 6242 6603 8804 9363 12484 13206 18726 26412 37452 96751 193502 221591 290253 387004 443182 580506 664773 886364 1161012 1329546 2659092 6869321 13738642 20607963 27477284 41215926 82431852