Search a number
-
+
1369636460 = 22568481823
BaseRepresentation
bin101000110100010…
…1111111001101100
310112110012202000022
41101220233321230
510301111331320
6343524021312
745640501133
oct12150577154
93473182008
101369636460
11643140165
12322831838
1318a9aa19a
14cdc8a91a
1580398325
hex51a2fe6c

1369636460 has 12 divisors (see below), whose sum is σ = 2876236608. Its totient is φ = 547854576.

The previous prime is 1369636421. The next prime is 1369636481. The reversal of 1369636460 is 646369631.

It is a super-2 number, since 2×13696364602 = 3751808065122663200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34240892 + ... + 34240931.

It is an arithmetic number, because the mean of its divisors is an integer number (239686384).

Almost surely, 21369636460 is an apocalyptic number.

1369636460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1369636460 is an abundant number, since it is smaller than the sum of its proper divisors (1506600148).

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

1369636460 is a wasteful number, since it uses less digits than its factorization.

1369636460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68481832 (or 68481830 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 44.

The square root of 1369636460 is about 37008.5998113952. The cubic root of 1369636460 is about 1110.5422937926.

The spelling of 1369636460 in words is "one billion, three hundred sixty-nine million, six hundred thirty-six thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 68481823 136963646 273927292 342409115 684818230 1369636460