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11472931 = 27314201
BaseRepresentation
bin101011110001…
…000000100011
3210120212220101
4223301000203
510414113211
61045523231
7166342531
oct53610043
923525811
1011472931
116526868
123a13517
1324b9122
141749151
1510195c1
hexaf1023

11472931 has 4 divisors (see below), whose sum is σ = 11479864. Its totient is φ = 11466000.

The previous prime is 11472917. The next prime is 11472953. The reversal of 11472931 is 13927411.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11472931 - 27 = 11472803 is a prime.

It is a super-2 number, since 2×114729312 = 263256291461522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11472931.

It is not an unprimeable number, because it can be changed into a prime (11472991) 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, 631 + ... + 4831.

It is an arithmetic number, because the mean of its divisors is an integer number (2869966).

Almost surely, 211472931 is an apocalyptic number.

11472931 is a deficient number, since it is larger than the sum of its proper divisors (6933).

11472931 is an equidigital number, since it uses as much as digits as its factorization.

11472931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6932.

The product of its digits is 1512, while the sum is 28.

The square root of 11472931 is about 3387.1715338908. The cubic root of 11472931 is about 225.5406324324.

It can be divided in two parts, 11472 and 931, that added together give a triangular number (12403 = T157).

The spelling of 11472931 in words is "eleven million, four hundred seventy-two thousand, nine hundred thirty-one".

Divisors: 1 2731 4201 11472931