Search a number
-
+
18086080790 = 254388747419
BaseRepresentation
bin10000110110000000…
…111011000100010110
31201200110011002200002
4100312000323010112
5244020014041130
612150355251302
71210122102341
oct206600730426
951613132602
1018086080790
117741137208
123608ba9b32
13192300c66b
14c38037458
1570cc0db45
hex43603b116

18086080790 has 32 divisors (see below), whose sum is σ = 33350296320. Its totient is φ = 7058074464.

The previous prime is 18086080787. The next prime is 18086080861. The reversal of 18086080790 is 9708068081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357701 + ... + 405119.

It is an arithmetic number, because the mean of its divisors is an integer number (1042196760).

Almost surely, 218086080790 is an apocalyptic number.

18086080790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18086080790 is a deficient number, since it is larger than the sum of its proper divisors (15264215530).

18086080790 is a wasteful number, since it uses less digits than its factorization.

18086080790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48356.

The product of its (nonzero) digits is 193536, while the sum is 47.

The spelling of 18086080790 in words is "eighteen billion, eighty-six million, eighty thousand, seven hundred ninety".

Divisors: 1 2 5 10 43 86 215 430 887 1774 4435 8870 38141 47419 76282 94838 190705 237095 381410 474190 2039017 4078034 10195085 20390170 42060653 84121306 210303265 420606530 1808608079 3617216158 9043040395 18086080790