Search a number
-
+
11231930 = 256118413
BaseRepresentation
bin101010110110…
…001010111010
3210010122022102
4222312022322
510333410210
61040423402
7164320103
oct52661272
923118272
1011231930
116381796
123917b62
132433518
1416c53aa
15ebcea5
hexab62ba

11231930 has 16 divisors (see below), whose sum is σ = 20550024. Its totient is φ = 4418880.

The previous prime is 11231929. The next prime is 11231933. The reversal of 11231930 is 3913211.

It can be written as a sum of positive squares in 4 ways, for example, as 4456321 + 6775609 = 2111^2 + 2603^2 .

It is not an unprimeable number, because it can be changed into a prime (11231933) 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 7 ways as a sum of consecutive naturals, for example, 8597 + ... + 9816.

Almost surely, 211231930 is an apocalyptic number.

11231930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11231930 is a deficient number, since it is larger than the sum of its proper divisors (9318094).

11231930 is a wasteful number, since it uses less digits than its factorization.

11231930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18481.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 11231930 is about 3351.4071671464. The cubic root of 11231930 is about 223.9502041734.

The spelling of 11231930 in words is "eleven million, two hundred thirty-one thousand, nine hundred thirty".

Divisors: 1 2 5 10 61 122 305 610 18413 36826 92065 184130 1123193 2246386 5615965 11231930