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82124493 = 3117135051
BaseRepresentation
bin1001110010100…
…01111011001101
312201112100121220
410321101323031
5132010440433
612052113553
72015022003
oct471217315
9181470556
1082124493
11423a2390
12236058b9
1314025399
14ac9aa73
1573232b3
hex4e51ecd

82124493 has 16 divisors (see below), whose sum is σ = 121139712. Its totient is φ = 49070000.

The previous prime is 82124473. The next prime is 82124503. The reversal of 82124493 is 39442128.

It is a cyclic number.

It is not a de Polignac number, because 82124493 - 214 = 82108109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82124443) 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, 15183 + ... + 19868.

It is an arithmetic number, because the mean of its divisors is an integer number (7571232).

Almost surely, 282124493 is an apocalyptic number.

It is an amenable number.

82124493 is a deficient number, since it is larger than the sum of its proper divisors (39015219).

82124493 is a wasteful number, since it uses less digits than its factorization.

82124493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35136.

The product of its digits is 13824, while the sum is 33.

The square root of 82124493 is about 9062.2565070737. The cubic root of 82124493 is about 434.6678981919.

The spelling of 82124493 in words is "eighty-two million, one hundred twenty-four thousand, four hundred ninety-three".

Divisors: 1 3 11 33 71 213 781 2343 35051 105153 385561 1156683 2488621 7465863 27374831 82124493