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83708068 = 22171231001
BaseRepresentation
bin1001111110101…
…00100010100100
312211111210212211
410333110202210
5132412124233
612150053204
72034335563
oct477244244
9184453784
1083708068
1143284124
122404a204
131445b102
14b18dbda
1575375cd
hex4fd48a4

83708068 has 12 divisors (see below), whose sum is σ = 155106252. Its totient is φ = 39392000.

The previous prime is 83708059. The next prime is 83708071. The reversal of 83708068 is 86080738.

It can be written as a sum of positive squares in 2 ways, for example, as 30008484 + 53699584 = 5478^2 + 7328^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 83708068.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 615433 + ... + 615568.

It is an arithmetic number, because the mean of its divisors is an integer number (12925521).

Almost surely, 283708068 is an apocalyptic number.

It is an amenable number.

83708068 is a deficient number, since it is larger than the sum of its proper divisors (71398184).

83708068 is a wasteful number, since it uses less digits than its factorization.

83708068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231022 (or 1231020 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 83708068 is about 9149.2113321313. The cubic root of 83708068 is about 437.4439751933.

The spelling of 83708068 in words is "eighty-three million, seven hundred eight thousand, sixty-eight".

Divisors: 1 2 4 17 34 68 1231001 2462002 4924004 20927017 41854034 83708068