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58315989 = 319438663
BaseRepresentation
bin1101111001110…
…1010011010101
311001201202111110
43132131103111
5104412102424
65441525233
71305451314
oct336352325
9131652443
1058315989
112aa10736
1217643819
13c10a604
147a6027b
1551bdc29
hex379d4d5

58315989 has 4 divisors (see below), whose sum is σ = 77754656. Its totient is φ = 38877324.

The previous prime is 58315973. The next prime is 58315993. The reversal of 58315989 is 98951385.

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 not a de Polignac number, because 58315989 - 24 = 58315973 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58315919) 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, 9719329 + ... + 9719334.

It is an arithmetic number, because the mean of its divisors is an integer number (19438664).

Almost surely, 258315989 is an apocalyptic number.

It is an amenable number.

58315989 is a deficient number, since it is larger than the sum of its proper divisors (19438667).

58315989 is a wasteful number, since it uses less digits than its factorization.

58315989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19438666.

The product of its digits is 388800, while the sum is 48.

The square root of 58315989 is about 7636.4906206974. The cubic root of 58315989 is about 387.7893536341.

The spelling of 58315989 in words is "fifty-eight million, three hundred fifteen thousand, nine hundred eighty-nine".

Divisors: 1 3 19438663 58315989