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82915828 = 22237431213
BaseRepresentation
bin1001111000100…
…11000111110100
312210000120010121
410330103013310
5132211301303
612121101324
72024526052
oct474230764
9183016117
1082915828
1142892986
1223927844
1314241628
14b0251d2
15742c9bd
hex4f131f4

82915828 has 24 divisors (see below), whose sum is σ = 151740288. Its totient is φ = 39569376.

The previous prime is 82915823. The next prime is 82915841. The reversal of 82915828 is 82851928.

82915828 is nontrivially palindromic in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82915823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67750 + ... + 68962.

It is an arithmetic number, because the mean of its divisors is an integer number (6322512).

Almost surely, 282915828 is an apocalyptic number.

It is an amenable number.

82915828 is a deficient number, since it is larger than the sum of its proper divisors (68824460).

82915828 is a wasteful number, since it uses less digits than its factorization.

82915828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1983 (or 1981 counting only the distinct ones).

The product of its digits is 92160, while the sum is 43.

The square root of 82915828 is about 9105.8128687119. The cubic root of 82915828 is about 436.0595617644.

The spelling of 82915828 in words is "eighty-two million, nine hundred fifteen thousand, eight hundred twenty-eight".

Divisors: 1 2 4 23 46 92 743 1213 1486 2426 2972 4852 17089 27899 34178 55798 68356 111596 901259 1802518 3605036 20728957 41457914 82915828