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75113123 = 172259907
BaseRepresentation
bin1000111101000…
…10001010100011
312020100010211112
410132202022203
5123212104443
611241533535
71601310461
oct436421243
9166303745
1075113123
1139443668
12211a42ab
131273bc47
149d93831
1568dab18
hex47a22a3

75113123 has 6 divisors (see below), whose sum is σ = 79791756. Its totient is φ = 70694432.

The previous prime is 75113119. The next prime is 75113141. The reversal of 75113123 is 32131157.

It is not a de Polignac number, because 75113123 - 22 = 75113119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75113323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 129665 + ... + 130242.

It is an arithmetic number, because the mean of its divisors is an integer number (13298626).

Almost surely, 275113123 is an apocalyptic number.

75113123 is a deficient number, since it is larger than the sum of its proper divisors (4678633).

75113123 is a wasteful number, since it uses less digits than its factorization.

75113123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259941 (or 259924 counting only the distinct ones).

The product of its digits is 630, while the sum is 23.

The square root of 75113123 is about 8666.7827364022. The cubic root of 75113123 is about 421.9282519921.

The spelling of 75113123 in words is "seventy-five million, one hundred thirteen thousand, one hundred twenty-three".

Divisors: 1 17 289 259907 4418419 75113123