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83418272 = 2573141293
BaseRepresentation
bin1001111100011…
…01110010100000
312210222002100122
410332031302200
5132323341042
612135535412
72032020650
oct476156240
9183862318
1083418272
11430a6423
1223b2a568
1314389232
14b116360
1574cb7d2
hex4f8dca0

83418272 has 96 divisors (see below), whose sum is σ = 199148544. Its totient is φ = 33638400.

The previous prime is 83418259. The next prime is 83418287. The reversal of 83418272 is 27281438.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284558 + ... + 284850.

It is an arithmetic number, because the mean of its divisors is an integer number (2074464).

Almost surely, 283418272 is an apocalyptic number.

83418272 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83418272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99574272).

83418272 is an abundant number, since it is smaller than the sum of its proper divisors (115730272).

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

83418272 is a wasteful number, since it uses less digits than its factorization.

83418272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382 (or 374 counting only the distinct ones).

The product of its digits is 21504, while the sum is 35.

The square root of 83418272 is about 9133.3603892543. The cubic root of 83418272 is about 436.9385834964.

The spelling of 83418272 in words is "eighty-three million, four hundred eighteen thousand, two hundred seventy-two".

Divisors: 1 2 4 7 8 14 16 28 31 32 41 56 62 82 112 124 164 217 224 248 287 293 328 434 496 574 586 656 868 992 1148 1172 1271 1312 1736 2051 2296 2344 2542 3472 4102 4592 4688 5084 6944 8204 8897 9083 9184 9376 10168 12013 16408 17794 18166 20336 24026 32816 35588 36332 40672 48052 63581 65632 71176 72664 84091 96104 127162 142352 145328 168182 192208 254324 284704 290656 336364 372403 384416 508648 672728 744806 1017296 1345456 1489612 2034592 2606821 2690912 2979224 5213642 5958448 10427284 11916896 20854568 41709136 83418272