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82071936 = 2732191373
BaseRepresentation
bin1001110010001…
…01000110000000
312201102200112100
410321011012000
5132002300221
612051030400
72014412532
oct471050600
9181380470
1082071936
1142366951
122359b400
131400749b
14ac85852
157312926
hex4e45180

82071936 has 96 divisors (see below), whose sum is σ = 238043520. Its totient is φ = 27141120.

The previous prime is 82071881. The next prime is 82071949. The reversal of 82071936 is 63917028.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a self number, because there is not a number n which added to its sum of digits gives 82071936.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 219846 + ... + 220218.

It is an arithmetic number, because the mean of its divisors is an integer number (2479620).

Almost surely, 282071936 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 82071936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119021760).

82071936 is an abundant number, since it is smaller than the sum of its proper divisors (155971584).

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

82071936 is a wasteful number, since it uses less digits than its factorization.

82071936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584 (or 569 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 82071936 is about 9059.3562685215. The cubic root of 82071936 is about 434.5751539733.

The spelling of 82071936 in words is "eighty-two million, seventy-one thousand, nine hundred thirty-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 191 192 288 373 382 384 573 576 746 764 1119 1146 1152 1492 1528 1719 2238 2292 2984 3056 3357 3438 4476 4584 5968 6112 6714 6876 8952 9168 11936 12224 13428 13752 17904 18336 23872 24448 26856 27504 35808 36672 47744 53712 55008 71243 71616 73344 107424 110016 142486 143232 213729 214848 220032 284972 427458 429696 569944 641187 854916 1139888 1282374 1709832 2279776 2564748 3419664 4559552 5129496 6839328 9119104 10258992 13678656 20517984 27357312 41035968 82071936