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82360920 = 23351747859
BaseRepresentation
bin1001110100010…
…11101001011000
312201222100221110
410322023221120
5132041022140
612101140320
72020025205
oct472135130
9181870843
1082360920
1142543a84
12236ba6a0
13140a8b95
14ad1ccac
15736d380
hex4e8ba58

82360920 has 128 divisors (see below), whose sum is σ = 267494400. Its totient is φ = 20207616.

The previous prime is 82360913. The next prime is 82360933. The reversal of 82360920 is 2906328.

It is a super-2 number, since 2×823609202 = 13566642286492800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 95451 + ... + 96309.

It is an arithmetic number, because the mean of its divisors is an integer number (2089800).

Almost surely, 282360920 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 82360920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133747200).

82360920 is an abundant number, since it is smaller than the sum of its proper divisors (185133480).

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

82360920 is a wasteful number, since it uses less digits than its factorization.

82360920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937 (or 933 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 82360920 is about 9075.2917308481. The cubic root of 82360920 is about 435.0846182327.

The spelling of 82360920 in words is "eighty-two million, three hundred sixty thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 17 20 24 30 34 40 47 51 60 68 85 94 102 120 136 141 170 188 204 235 255 282 340 376 408 470 510 564 680 705 799 859 940 1020 1128 1410 1598 1718 1880 2040 2397 2577 2820 3196 3436 3995 4295 4794 5154 5640 6392 6872 7990 8590 9588 10308 11985 12885 14603 15980 17180 19176 20616 23970 25770 29206 31960 34360 40373 43809 47940 51540 58412 73015 80746 87618 95880 103080 116824 121119 146030 161492 175236 201865 219045 242238 292060 322984 350472 403730 438090 484476 584120 605595 686341 807460 876180 968952 1211190 1372682 1614920 1752360 2059023 2422380 2745364 3431705 4118046 4844760 5490728 6863410 8236092 10295115 13726820 16472184 20590230 27453640 41180460 82360920