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11231623 = 131575503
BaseRepresentation
bin101010110110…
…000110000111
3210010121220001
4222312012013
510333402443
61040422131
7164316154
oct52660607
923117801
1011231623
116381537
123917947
132433340
1416c522b
15ebcd4d
hexab6187

11231623 has 8 divisors (see below), whose sum is σ = 12174848. Its totient is φ = 10299744.

The previous prime is 11231537. The next prime is 11231629. The reversal of 11231623 is 32613211.

11231623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11231623 - 29 = 11231111 is a prime.

It is a super-2 number, since 2×112316232 = 252298710428258, 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 11231623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231629) 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, 711 + ... + 4792.

It is an arithmetic number, because the mean of its divisors is an integer number (1521856).

Almost surely, 211231623 is an apocalyptic number.

11231623 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11231623 is a deficient number, since it is larger than the sum of its proper divisors (943225).

11231623 is a wasteful number, since it uses less digits than its factorization.

11231623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5673.

The product of its digits is 216, while the sum is 19.

The square root of 11231623 is about 3351.3613651768. The cubic root of 11231623 is about 223.9481637601.

Adding to 11231623 its reverse (32613211), we get a palindrome (43844834).

The spelling of 11231623 in words is "eleven million, two hundred thirty-one thousand, six hundred twenty-three".

Divisors: 1 13 157 2041 5503 71539 863971 11231623