Search a number
-
+
58055990 = 257181769
BaseRepresentation
bin1101110101110…
…1110100110110
311001020112211212
43131131310312
5104330242430
65432201422
71303316306
oct335356466
9131215755
1058055990
112a853363
1217539272
13c049175
1479d3606
15516bb95
hex375dd36

58055990 has 16 divisors (see below), whose sum is σ = 105973920. Its totient is φ = 22895040.

The previous prime is 58055989. The next prime is 58055993. The reversal of 58055990 is 9955085.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58055993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40175 + ... + 41594.

It is an arithmetic number, because the mean of its divisors is an integer number (6623370).

Almost surely, 258055990 is an apocalyptic number.

58055990 is a deficient number, since it is larger than the sum of its proper divisors (47917930).

58055990 is a wasteful number, since it uses less digits than its factorization.

58055990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81847.

The product of its (nonzero) digits is 81000, while the sum is 41.

The square root of 58055990 is about 7619.4481427463. The cubic root of 58055990 is about 387.2121816953.

The spelling of 58055990 in words is "fifty-eight million, fifty-five thousand, nine hundred ninety".

Divisors: 1 2 5 10 71 142 355 710 81769 163538 408845 817690 5805599 11611198 29027995 58055990