Search a number
-
+
11642930 = 251389561
BaseRepresentation
bin101100011010…
…100000110010
3210220112002122
4230122200302
510440033210
61053314242
7200651255
oct54324062
923815078
1011642930
116632562
123a95982
132548610
14179109c
15104eb55
hexb1a832

11642930 has 16 divisors (see below), whose sum is σ = 22569624. Its totient is φ = 4298880.

The previous prime is 11642929. The next prime is 11642933. The reversal of 11642930 is 3924611.

It can be written as a sum of positive squares in 4 ways, for example, as 5527201 + 6115729 = 2351^2 + 2473^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 11642930.

It is not an unprimeable number, because it can be changed into a prime (11642933) 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, 44651 + ... + 44910.

Almost surely, 211642930 is an apocalyptic number.

11642930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11642930 is a deficient number, since it is larger than the sum of its proper divisors (10926694).

11642930 is a wasteful number, since it uses less digits than its factorization.

11642930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89581.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 11642930 is about 3412.1737939325. The cubic root of 11642930 is about 226.6491504150.

The spelling of 11642930 in words is "eleven million, six hundred forty-two thousand, nine hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 89561 179122 447805 895610 1164293 2328586 5821465 11642930