Search a number
-
+
1913956934 = 21756292851
BaseRepresentation
bin111001000010100…
…1010101001000110
311221101110002022212
41302011022221012
512404433110214
6513530423422
765300236241
oct16205125106
94841402285
101913956934
118a241919a
12454b91b72
132466ac4c6
1414229c258
15b306853e
hex7214aa46

1913956934 has 8 divisors (see below), whose sum is σ = 3039814008. Its totient is φ = 900685600.

The previous prime is 1913956931. The next prime is 1913956973. The reversal of 1913956934 is 4396593191.

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

It is a super-2 number, since 2×19139569342 = 7326462290413360712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1913956931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28146392 + ... + 28146459.

It is an arithmetic number, because the mean of its divisors is an integer number (379976751).

Almost surely, 21913956934 is an apocalyptic number.

1913956934 is a deficient number, since it is larger than the sum of its proper divisors (1125857074).

1913956934 is a wasteful number, since it uses less digits than its factorization.

1913956934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56292870.

The product of its digits is 787320, while the sum is 50.

The square root of 1913956934 is about 43748.7935147931. The cubic root of 1913956934 is about 1241.5876589359.

The spelling of 1913956934 in words is "one billion, nine hundred thirteen million, nine hundred fifty-six thousand, nine hundred thirty-four".

Divisors: 1 2 17 34 56292851 112585702 956978467 1913956934