Search a number
-
+
18955082 = 223412067
BaseRepresentation
bin100100001001…
…1101101001010
31022200000111002
41020103231022
514323030312
61514135002
7320054426
oct110235512
938600432
1018955082
11a777263
126421462
133c08933
142735b86
1519e64c2
hex1213b4a

18955082 has 8 divisors (see below), whose sum is σ = 29668896. Its totient is φ = 9065452.

The previous prime is 18955039. The next prime is 18955087. The reversal of 18955082 is 28055981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (18955087) 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 3 ways as a sum of consecutive naturals, for example, 205988 + ... + 206079.

It is an arithmetic number, because the mean of its divisors is an integer number (3708612).

Almost surely, 218955082 is an apocalyptic number.

18955082 is a deficient number, since it is larger than the sum of its proper divisors (10713814).

18955082 is a wasteful number, since it uses less digits than its factorization.

18955082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412092.

The product of its (nonzero) digits is 28800, while the sum is 38.

The square root of 18955082 is about 4353.7434467364. The cubic root of 18955082 is about 266.6297195339.

It can be divided in two parts, 189550 and 82, that multiplied together give a triangular number (15543100 = T5575).

The spelling of 18955082 in words is "eighteen million, nine hundred fifty-five thousand, eighty-two".

Divisors: 1 2 23 46 412067 824134 9477541 18955082