Search a number
-
+
1368163239 = 31393280967
BaseRepresentation
bin101000110001100…
…1000001110100111
310112100102220010120
41101203020032213
510300222210424
6343432253023
745622124052
oct12143101647
93470386116
101368163239
11642324323
12322241173
1318a5b2761
14cd9c5a99
15801a6a79
hex518c83a7

1368163239 has 8 divisors (see below), whose sum is σ = 1837342080. Its totient is φ = 905546616.

The previous prime is 1368163219. The next prime is 1368163259. The reversal of 1368163239 is 9323618631.

It is an interprime number because it is at equal distance from previous prime (1368163219) and next prime (1368163259).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1368163239 - 211 = 1368161191 is a prime.

It is a super-2 number, since 2×13681632392 = 3743741297101942242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1368163239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368163219) 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, 1640067 + ... + 1640900.

It is an arithmetic number, because the mean of its divisors is an integer number (229667760).

Almost surely, 21368163239 is an apocalyptic number.

1368163239 is a deficient number, since it is larger than the sum of its proper divisors (469178841).

1368163239 is a wasteful number, since it uses less digits than its factorization.

1368163239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3281109.

The product of its digits is 139968, while the sum is 42.

The square root of 1368163239 is about 36988.6906905340. The cubic root of 1368163239 is about 1110.1439736957.

The spelling of 1368163239 in words is "one billion, three hundred sixty-eight million, one hundred sixty-three thousand, two hundred thirty-nine".

Divisors: 1 3 139 417 3280967 9842901 456054413 1368163239