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58779381 = 373972767
BaseRepresentation
bin1110000000111…
…0011011110101
311002121022011010
43200032123311
5110021420011
65455502433
71312421313
oct340163365
9132538133
1058779381
11301a7901
1217827a19
13c2404cb
147b410b3
1552611a6
hex380e6f5

58779381 has 16 divisors (see below), whose sum is σ = 80294144. Its totient is φ = 38237184.

The previous prime is 58779367. The next prime is 58779389. The reversal of 58779381 is 18397785.

It is not a de Polignac number, because 58779381 - 222 = 54585077 is a prime.

It is a super-2 number, since 2×587793812 = 6910031261486322, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (423360) is a multiple of the sum of its prime divisors (2940).

It is a self number, because there is not a number n which added to its sum of digits gives 58779381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58779389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19860 + ... + 22626.

It is an arithmetic number, because the mean of its divisors is an integer number (5018384).

Almost surely, 258779381 is an apocalyptic number.

It is an amenable number.

58779381 is a deficient number, since it is larger than the sum of its proper divisors (21514763).

58779381 is a wasteful number, since it uses less digits than its factorization.

58779381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2940.

The product of its digits is 423360, while the sum is 48.

The square root of 58779381 is about 7666.7712239247. The cubic root of 58779381 is about 388.8137988020.

The spelling of 58779381 in words is "fifty-eight million, seven hundred seventy-nine thousand, three hundred eighty-one".

Divisors: 1 3 73 97 219 291 2767 7081 8301 21243 201991 268399 605973 805197 19593127 58779381