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11812953 = 331373433
BaseRepresentation
bin101101000100…
…000001011001
3211020011022210
4231010001121
511011003303
61101105333
7202260045
oct55040131
924204283
1011812953
116739279
123b58249
1325a7b19
1417d7025
151085203
hexb44059

11812953 has 16 divisors (see below), whose sum is σ = 16702976. Its totient is φ = 7413120.

The previous prime is 11812939. The next prime is 11812963. The reversal of 11812953 is 35921811.

11812953 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11812953 - 210 = 11811929 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11812953.

It is not an unprimeable number, because it can be changed into a prime (11812903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1725 + ... + 5157.

It is an arithmetic number, because the mean of its divisors is an integer number (1043936).

Almost surely, 211812953 is an apocalyptic number.

It is an amenable number.

11812953 is a deficient number, since it is larger than the sum of its proper divisors (4890023).

11812953 is a wasteful number, since it uses less digits than its factorization.

11812953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3504.

The product of its digits is 2160, while the sum is 30.

The square root of 11812953 is about 3436.9976723879. The cubic root of 11812953 is about 227.7470841229.

The spelling of 11812953 in words is "eleven million, eight hundred twelve thousand, nine hundred fifty-three".

Divisors: 1 3 31 37 93 111 1147 3433 3441 10299 106423 127021 319269 381063 3937651 11812953