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58809381 = 3113283613
BaseRepresentation
bin1110000001010…
…1110000100101
311002122211022020
43200111300211
5110023400011
65500253353
71312604631
oct340256045
9132584266
1058809381
11302183a4
1217841259
13c251067
147b4bdc1
15526a006
hex3815c25

58809381 has 16 divisors (see below), whose sum is σ = 79515456. Its totient is φ = 38658816.

The previous prime is 58809379. The next prime is 58809397. The reversal of 58809381 is 18390885.

It is not a de Polignac number, because 58809381 - 21 = 58809379 is a prime.

It is a super-2 number, since 2×588093812 = 6917086587206322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58809301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95631 + ... + 96243.

It is an arithmetic number, because the mean of its divisors is an integer number (4969716).

Almost surely, 258809381 is an apocalyptic number.

It is an amenable number.

58809381 is a deficient number, since it is larger than the sum of its proper divisors (20706075).

58809381 is a wasteful number, since it uses less digits than its factorization.

58809381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012.

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 58809381 is about 7668.7274694046. The cubic root of 58809381 is about 388.8799355429.

The spelling of 58809381 in words is "fifty-eight million, eight hundred nine thousand, three hundred eighty-one".

Divisors: 1 3 113 283 339 613 849 1839 31979 69269 95937 173479 207807 520437 19603127 58809381