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75161137 = 743101159
BaseRepresentation
bin1000111101011…
…01111000110001
312020102120200211
410132231320301
5123220124022
611242544121
71601600452
oct436557061
9166376624
1075161137
1139476747
1221208041
1312757a5c
149da7129
1568e9e77
hex47ade31

75161137 has 4 divisors (see below), whose sum is σ = 75263040. Its totient is φ = 75059236.

The previous prime is 75161111. The next prime is 75161161. The reversal of 75161137 is 73116157.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 75161137 - 211 = 75159089 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75161099 and 75161108.

It is not an unprimeable number, because it can be changed into a prime (75161237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49837 + ... + 51322.

It is an arithmetic number, because the mean of its divisors is an integer number (18815760).

Almost surely, 275161137 is an apocalyptic number.

It is an amenable number.

75161137 is a deficient number, since it is larger than the sum of its proper divisors (101903).

75161137 is a wasteful number, since it uses less digits than its factorization.

75161137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101902.

The product of its digits is 4410, while the sum is 31.

The square root of 75161137 is about 8669.5522952457. The cubic root of 75161137 is about 422.0181348570.

The spelling of 75161137 in words is "seventy-five million, one hundred sixty-one thousand, one hundred thirty-seven".

Divisors: 1 743 101159 75161137