Search a number
-
+
18054522830 = 256726947049
BaseRepresentation
bin10000110100001000…
…100010011111001110
31201121020202210021202
4100310020202133032
5243433424212310
612143311025502
71206256624541
oct206410423716
951536683252
1018054522830
117725342253
1235ba50b292
131919610506
14c33b80858
1570a0783a5
hex4342227ce

18054522830 has 16 divisors (see below), whose sum is σ = 32983189200. Its totient is φ = 7114020672.

The previous prime is 18054522781. The next prime is 18054522839. The reversal of 18054522830 is 3822545081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18054522839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13472855 + ... + 13474194.

It is an arithmetic number, because the mean of its divisors is an integer number (2061449325).

Almost surely, 218054522830 is an apocalyptic number.

18054522830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18054522830 is a deficient number, since it is larger than the sum of its proper divisors (14928666370).

18054522830 is a wasteful number, since it uses less digits than its factorization.

18054522830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26947123.

The product of its (nonzero) digits is 76800, while the sum is 38.

The spelling of 18054522830 in words is "eighteen billion, fifty-four million, five hundred twenty-two thousand, eight hundred thirty".

Divisors: 1 2 5 10 67 134 335 670 26947049 53894098 134735245 269470490 1805452283 3610904566 9027261415 18054522830