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8075138 = 215725717
BaseRepresentation
bin11110110011011110000010
3120012021000012
4132303132002
54031401023
6445024522
7125431451
oct36633602
916167005
108075138
114615a75
122855142
1318996b6
141102b98
15a97978
hex7b3782

8075138 has 8 divisors (see below), whose sum is σ = 12190332. Its totient is φ = 4011696.

The previous prime is 8075131. The next prime is 8075141. The reversal of 8075138 is 8315708.

It can be written as a sum of positive squares in 2 ways, for example, as 8048569 + 26569 = 2837^2 + 163^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (8075131) 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 3 ways as a sum of consecutive naturals, for example, 12545 + ... + 13172.

Almost surely, 28075138 is an apocalyptic number.

8075138 is a deficient number, since it is larger than the sum of its proper divisors (4115194).

8075138 is a wasteful number, since it uses less digits than its factorization.

8075138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25876.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 8075138 is about 2841.6787292022. The cubic root of 8075138 is about 200.6241998461.

The spelling of 8075138 in words is "eight million, seventy-five thousand, one hundred thirty-eight".

Divisors: 1 2 157 314 25717 51434 4037569 8075138