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58131161 = 115284651
BaseRepresentation
bin1101110111000…
…0001011011001
311001101100221222
43131300023121
5104340144121
65433541425
71304051414
oct335601331
9131340858
1058131161
112a8a4890
1217574875
13c07444a
147a12b7b
1551840ab
hex37702d9

58131161 has 4 divisors (see below), whose sum is σ = 63415824. Its totient is φ = 52846500.

The previous prime is 58131121. The next prime is 58131163. The reversal of 58131161 is 16113185.

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 58131161 - 218 = 57869017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 58131161.

It is not an unprimeable number, because it can be changed into a prime (58131163) 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, 2642315 + ... + 2642336.

It is an arithmetic number, because the mean of its divisors is an integer number (15853956).

Almost surely, 258131161 is an apocalyptic number.

It is an amenable number.

58131161 is a deficient number, since it is larger than the sum of its proper divisors (5284663).

58131161 is a wasteful number, since it uses less digits than its factorization.

58131161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5284662.

The product of its digits is 720, while the sum is 26.

The square root of 58131161 is about 7624.3793845794. The cubic root of 58131161 is about 387.3792306268.

The spelling of 58131161 in words is "fifty-eight million, one hundred thirty-one thousand, one hundred sixty-one".

Divisors: 1 11 5284651 58131161