Search a number
-
+
1364868986 = 21352494961
BaseRepresentation
bin101000101011010…
…0011111101111010
310112010020112021012
41101112203331322
510243401301421
6343233513522
745552123605
oct12126437572
93463215235
101364868986
116404842a8
123211128a2
131899cb1b0
14cd3a933c
157ec5595b
hex515a3f7a

1364868986 has 8 divisors (see below), whose sum is σ = 2204788404. Its totient is φ = 629939520.

The previous prime is 1364868983. The next prime is 1364868991. The reversal of 1364868986 is 6898684631.

It can be written as a sum of positive squares in 2 ways, for example, as 1363898761 + 970225 = 36931^2 + 985^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1364868983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26247455 + ... + 26247506.

Almost surely, 21364868986 is an apocalyptic number.

1364868986 is a deficient number, since it is larger than the sum of its proper divisors (839919418).

1364868986 is a wasteful number, since it uses less digits than its factorization.

1364868986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52494976.

The product of its digits is 11943936, while the sum is 59.

The square root of 1364868986 is about 36944.1333096339. The cubic root of 1364868986 is about 1109.2522588965.

The spelling of 1364868986 in words is "one billion, three hundred sixty-four million, eight hundred sixty-eight thousand, nine hundred eighty-six".

Divisors: 1 2 13 26 52494961 104989922 682434493 1364868986