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82937091 = 3371076983
BaseRepresentation
bin1001111000110…
…00010100000011
312210001122022010
410330120110003
5132212441331
612121344003
72024645046
oct474302403
9183048263
1082937091
11428a7956
1223938003
131424b203
14b02cc5d
157433e46
hex4f18503

82937091 has 16 divisors (see below), whose sum is σ = 114649344. Its totient is φ = 53286624.

The previous prime is 82937083. The next prime is 82937117. The reversal of 82937091 is 19073928.

It is not a de Polignac number, because 82937091 - 23 = 82937083 is a prime.

It is a super-2 number, since 2×829370912 = 13757122127084562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82937021) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 8386 + ... + 15368.

It is an arithmetic number, because the mean of its divisors is an integer number (7165584).

Almost surely, 282937091 is an apocalyptic number.

82937091 is a deficient number, since it is larger than the sum of its proper divisors (31712253).

82937091 is a wasteful number, since it uses less digits than its factorization.

82937091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7130.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 82937091 is about 9106.9803447685. The cubic root of 82937091 is about 436.0968330641.

The spelling of 82937091 in words is "eighty-two million, nine hundred thirty-seven thousand, ninety-one".

Divisors: 1 3 37 107 111 321 3959 6983 11877 20949 258371 747181 775113 2241543 27645697 82937091