Search a number
-
+
15386340164 = 22132137138461
BaseRepresentation
bin11100101010001100…
…01110101101000100
31110201022010001202112
432111012032231010
5223002400341124
611022434400152
71053200506406
oct162506165504
943638101675
1015386340164
116586208108
122b94a30058
1315b28b6cc0
14a5d670b76
15600bca90e
hex39518eb44

15386340164 has 24 divisors (see below), whose sum is σ = 29011112088. Its totient is φ = 7098013440.

The previous prime is 15386340157. The next prime is 15386340169. The reversal of 15386340164 is 46104368351.

It can be written as a sum of positive squares in 4 ways, for example, as 439321600 + 14947018564 = 20960^2 + 122258^2 .

It is not an unprimeable number, because it can be changed into a prime (15386340169) 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, 41894 + ... + 180354.

It is an arithmetic number, because the mean of its divisors is an integer number (1208796337).

Almost surely, 215386340164 is an apocalyptic number.

It is an amenable number.

15386340164 is a deficient number, since it is larger than the sum of its proper divisors (13624771924).

15386340164 is a wasteful number, since it uses less digits than its factorization.

15386340164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140615 (or 140613 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 15386340164 in words is "fifteen billion, three hundred eighty-six million, three hundred forty thousand, one hundred sixty-four".

Divisors: 1 2 4 13 26 52 2137 4274 8548 27781 55562 111124 138461 276922 553844 1799993 3599986 7199972 295891157 591782314 1183564628 3846585041 7693170082 15386340164