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82107516 = 22323521571
BaseRepresentation
bin1001110010011…
…01110001111100
312201111111100010
410321031301330
5132004420031
612051503220
72014621341
oct471156174
9181444303
1082107516
1142390657
12235b7b10
131401a73a
14ac947c8
15731d246
hex4e4dc7c

82107516 has 48 divisors (see below), whose sum is σ = 200648448. Its totient is φ = 26083200.

The previous prime is 82107503. The next prime is 82107563. The reversal of 82107516 is 61570128.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143511 + ... + 144081.

It is an arithmetic number, because the mean of its divisors is an integer number (4180176).

Almost surely, 282107516 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 82107516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100324224).

82107516 is an abundant number, since it is smaller than the sum of its proper divisors (118540932).

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

82107516 is a wasteful number, since it uses less digits than its factorization.

82107516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122 (or 1120 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 82107516 is about 9061.3197714240. The cubic root of 82107516 is about 434.6379442151.

The spelling of 82107516 in words is "eighty-two million, one hundred seven thousand, five hundred sixteen".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 521 571 1042 1142 1563 1713 2084 2284 3126 3426 6252 6852 11983 13133 23966 26266 35949 39399 47932 52532 71898 78798 143796 157596 297491 594982 892473 1189964 1784946 3569892 6842293 13684586 20526879 27369172 41053758 82107516