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82913916 = 2236909493
BaseRepresentation
bin1001111000100…
…10101001111100
312210000110111210
410330102221330
5132211221131
612121044420
72024520351
oct474225174
9183013453
1082913916
11428914a8
1223926710
13142407b7
14b024628
15742c146
hex4f12a7c

82913916 has 12 divisors (see below), whose sum is σ = 193465832. Its totient is φ = 27637968.

The previous prime is 82913903. The next prime is 82913923. The reversal of 82913916 is 61931928.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3454735 + ... + 3454758.

Almost surely, 282913916 is an apocalyptic number.

It is an amenable number.

82913916 is an abundant number, since it is smaller than the sum of its proper divisors (110551916).

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

82913916 is a wasteful number, since it uses less digits than its factorization.

82913916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6909500 (or 6909498 counting only the distinct ones).

The product of its digits is 23328, while the sum is 39.

The square root of 82913916 is about 9105.7078802255. The cubic root of 82913916 is about 436.0562099625.

The spelling of 82913916 in words is "eighty-two million, nine hundred thirteen thousand, nine hundred sixteen".

Divisors: 1 2 3 4 6 12 6909493 13818986 20728479 27637972 41456958 82913916