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82913793 = 31092271117
BaseRepresentation
bin1001111000100…
…10101000000001
312210000110100020
410330102220001
5132211220133
612121044053
72024520114
oct474225001
9183013306
1082913793
11428913a6
1223926629
1314240721
14b02457b
15742c0b3
hex4f12a01

82913793 has 16 divisors (see below), whose sum is σ = 112157760. Its totient is φ = 54478656.

The previous prime is 82913791. The next prime is 82913807. The reversal of 82913793 is 39731928.

It is not a de Polignac number, because 82913793 - 21 = 82913791 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82913791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73671 + ... + 74787.

It is an arithmetic number, because the mean of its divisors is an integer number (7009860).

Almost surely, 282913793 is an apocalyptic number.

It is an amenable number.

82913793 is a deficient number, since it is larger than the sum of its proper divisors (29243967).

82913793 is a wasteful number, since it uses less digits than its factorization.

82913793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456.

The product of its digits is 81648, while the sum is 42.

The square root of 82913793 is about 9105.7011262176. The cubic root of 82913793 is about 436.0559943375.

The spelling of 82913793 in words is "eighty-two million, nine hundred thirteen thousand, seven hundred ninety-three".

Divisors: 1 3 109 227 327 681 1117 3351 24743 74229 121753 253559 365259 760677 27637931 82913793