Search a number
-
+
18486379760 = 245829727851
BaseRepresentation
bin10001001101110111…
…111100010011110000
31202201100101101121212
4101031313330103300
5300330003123020
612254215135252
71223052430622
oct211567742360
952640341555
1018486379760
117927096802
1236bb074528
131987c27064
14c75278c12
15732e30cc5
hex44ddfc4f0

18486379760 has 40 divisors (see below), whose sum is σ = 42987556656. Its totient is φ = 7393395200.

The previous prime is 18486379733. The next prime is 18486379777. The reversal of 18486379760 is 6797368481.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 18486379760.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 649835 + ... + 677685.

Almost surely, 218486379760 is an apocalyptic number.

18486379760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18486379760 is an abundant number, since it is smaller than the sum of its proper divisors (24501176896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18486379760 is a wasteful number, since it uses less digits than its factorization.

18486379760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36161 (or 36155 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 59.

The spelling of 18486379760 in words is "eighteen billion, four hundred eighty-six million, three hundred seventy-nine thousand, seven hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 80 8297 16594 27851 33188 41485 55702 66376 82970 111404 132752 139255 165940 222808 278510 331880 445616 557020 663760 1114040 2228080 231079747 462159494 924318988 1155398735 1848637976 2310797470 3697275952 4621594940 9243189880 18486379760