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82372680 = 23335135867
BaseRepresentation
bin1001110100011…
…10100001001000
312201222222002000
410322032201020
5132041411210
612101311000
72020104405
oct472164110
9181888060
1082372680
11425518a5
1223705460
13140b1340
14ad232ac
157371ac0
hex4e8e848

82372680 has 128 divisors (see below), whose sum is σ = 295747200. Its totient is φ = 20272896.

The previous prime is 82372679. The next prime is 82372699. The reversal of 82372680 is 8627328.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11107 + ... + 16973.

It is an arithmetic number, because the mean of its divisors is an integer number (2310525).

Almost surely, 282372680 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 82372680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147873600).

82372680 is an abundant number, since it is smaller than the sum of its proper divisors (213374520).

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

82372680 is a wasteful number, since it uses less digits than its factorization.

82372680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5900 (or 5890 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 82372680 is about 9075.9396207776. The cubic root of 82372680 is about 435.1053252687.

The spelling of 82372680 in words is "eighty-two million, three hundred seventy-two thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 13 15 18 20 24 26 27 30 36 39 40 45 52 54 60 65 72 78 90 104 108 117 120 130 135 156 180 195 216 234 260 270 312 351 360 390 468 520 540 585 702 780 936 1080 1170 1404 1560 1755 2340 2808 3510 4680 5867 7020 11734 14040 17601 23468 29335 35202 46936 52803 58670 70404 76271 88005 105606 117340 140808 152542 158409 176010 211212 228813 234680 264015 305084 316818 352020 381355 422424 457626 528030 610168 633636 686439 704040 762710 792045 915252 1056060 1144065 1267272 1372878 1525420 1584090 1830504 2059317 2112120 2288130 2745756 3050840 3168180 3432195 4118634 4576260 5491512 6336360 6864390 8237268 9152520 10296585 13728780 16474536 20593170 27457560 41186340 82372680