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58105513 = 431351291
BaseRepresentation
bin1101110110100…
…1111010101001
311001100001210001
43131221322221
5104333334023
65433223001
71303613554
oct335517251
9131301701
1058105513
112a887594
1217561a61
13c06587b
147a0769b
15517b6ad
hex3769ea9

58105513 has 4 divisors (see below), whose sum is σ = 59456848. Its totient is φ = 56754180.

The previous prime is 58105483. The next prime is 58105517. The reversal of 58105513 is 31550185.

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 a de Polignac number, because none of the positive numbers 2k-58105513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (58105517) 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, 675603 + ... + 675688.

It is an arithmetic number, because the mean of its divisors is an integer number (14864212).

Almost surely, 258105513 is an apocalyptic number.

It is an amenable number.

58105513 is a deficient number, since it is larger than the sum of its proper divisors (1351335).

58105513 is a wasteful number, since it uses less digits than its factorization.

58105513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351334.

The product of its (nonzero) digits is 3000, while the sum is 28.

The square root of 58105513 is about 7622.6972260480. The cubic root of 58105513 is about 387.3222504925.

Adding to 58105513 its reverse (31550185), we get a palindrome (89655698).

The spelling of 58105513 in words is "fifty-eight million, one hundred five thousand, five hundred thirteen".

Divisors: 1 43 1351291 58105513