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75082068 = 223212291697
BaseRepresentation
bin1000111100110…
…10100101010100
312020021120020100
410132122211110
5123210111233
611241134100
71601121105
oct436324524
9166246210
1075082068
11394222a6
122118a330
131272aa79
149d863ac
1568d1813
hex479a954

75082068 has 36 divisors (see below), whose sum is σ = 190057140. Its totient is φ = 24992256.

The previous prime is 75082061. The next prime is 75082099. The reversal of 75082068 is 86028057.

It can be written as a sum of positive squares in 2 ways, for example, as 73307844 + 1774224 = 8562^2 + 1332^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75082061) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 43396 + ... + 45092.

It is an arithmetic number, because the mean of its divisors is an integer number (5279365).

Almost surely, 275082068 is an apocalyptic number.

It is an amenable number.

75082068 is an abundant number, since it is smaller than the sum of its proper divisors (114975072).

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

75082068 is a wasteful number, since it uses less digits than its factorization.

75082068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2936 (or 2931 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 75082068 is about 8664.9909405608. The cubic root of 75082068 is about 421.8700962064.

The spelling of 75082068 in words is "seventy-five million, eighty-two thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 1229 1697 2458 3394 3687 4916 5091 6788 7374 10182 11061 14748 15273 20364 22122 30546 44244 61092 2085613 4171226 6256839 8342452 12513678 18770517 25027356 37541034 75082068