Search a number
-
+
18083156294 = 272271719947
BaseRepresentation
bin10000110101110101…
…110001000101000110
31201200020122112000102
4100311311301011012
5244013242000134
612150212444102
71210055202200
oct206565610506
951606575012
1018083156294
11773a519a75
123608019632
1319225274a8
14c378b5770
1570c83237e
hex435d71146

18083156294 has 48 divisors (see below), whose sum is σ = 31747230720. Its totient is φ = 7702445520.

The previous prime is 18083156243. The next prime is 18083156303. The reversal of 18083156294 is 49265138081.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19094729 + ... + 19095675.

It is an arithmetic number, because the mean of its divisors is an integer number (661400640).

Almost surely, 218083156294 is an apocalyptic number.

18083156294 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18083156294 is a deficient number, since it is larger than the sum of its proper divisors (13664074426).

18083156294 is a wasteful number, since it uses less digits than its factorization.

18083156294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1953 (or 1946 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 47.

The spelling of 18083156294 in words is "eighteen billion, eighty-three million, one hundred fifty-six thousand, two hundred ninety-four".

Divisors: 1 2 7 14 49 98 271 542 719 947 1438 1894 1897 3794 5033 6629 10066 13258 13279 26558 35231 46403 70462 92806 194849 256637 389698 513274 680893 1361786 1363943 1796459 2727886 3592918 4766251 9532502 9547601 12575213 19095202 25150426 33363757 66727514 184522003 369044006 1291654021 2583308042 9041578147 18083156294