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18950063 = 118831951
BaseRepresentation
bin100100001001…
…0011110101111
31022122202121012
41020102132233
514322400223
61514055435
7320033666
oct110223657
938582535
1018950063
11a773510
12641a57b
133c06572
142733ddd
1519e4c78
hex12127af

18950063 has 8 divisors (see below), whose sum is σ = 20706816. Its totient is φ = 17199000.

The previous prime is 18950039. The next prime is 18950069. The reversal of 18950063 is 36005981.

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

It is a cyclic number.

It is not a de Polignac number, because 18950063 - 210 = 18949039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18950069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8738 + ... + 10688.

It is an arithmetic number, because the mean of its divisors is an integer number (2588352).

Almost surely, 218950063 is an apocalyptic number.

18950063 is a deficient number, since it is larger than the sum of its proper divisors (1756753).

18950063 is a wasteful number, since it uses less digits than its factorization.

18950063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2845.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 18950063 is about 4353.1670080529. The cubic root of 18950063 is about 266.6061843734.

The spelling of 18950063 in words is "eighteen million, nine hundred fifty thousand, sixty-three".

Divisors: 1 11 883 1951 9713 21461 1722733 18950063