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75158013 = 372511279
BaseRepresentation
bin1000111101011…
…01000111111101
312020102102102010
410132231013331
5123220024023
611242521433
71601555400
oct436550775
9166372363
1075158013
1139474367
1221206279
13127564c8
149da5d37
1568e9093
hex47ad1fd

75158013 has 12 divisors (see below), whose sum is σ = 116571840. Its totient is φ = 42947352.

The previous prime is 75158011. The next prime is 75158033. The reversal of 75158013 is 31085157.

It is not a de Polignac number, because 75158013 - 21 = 75158011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75158011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 255493 + ... + 255786.

It is an arithmetic number, because the mean of its divisors is an integer number (9714320).

Almost surely, 275158013 is an apocalyptic number.

It is an amenable number.

75158013 is a deficient number, since it is larger than the sum of its proper divisors (41413827).

75158013 is a wasteful number, since it uses less digits than its factorization.

75158013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511296 (or 511289 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 30.

The square root of 75158013 is about 8669.3721225934. The cubic root of 75158013 is about 422.0122878508.

The spelling of 75158013 in words is "seventy-five million, one hundred fifty-eight thousand, thirteen".

Divisors: 1 3 7 21 49 147 511279 1533837 3578953 10736859 25052671 75158013