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12100933 = 13930841
BaseRepresentation
bin101110001010…
…010101000101
3211202210100201
4232022111011
511044212213
61111210501
7204566455
oct56122505
924683321
1012100933
116915679
124076a31
132678c20
14186dd65
1510e06dd
hexb8a545

12100933 has 4 divisors (see below), whose sum is σ = 13031788. Its totient is φ = 11170080.

The previous prime is 12100909. The next prime is 12100939. The reversal of 12100933 is 33900121.

12100933 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33900121 = 281120641.

It can be written as a sum of positive squares in 2 ways, for example, as 1329409 + 10771524 = 1153^2 + 3282^2 .

It is a cyclic number.

It is not a de Polignac number, because 12100933 - 25 = 12100901 is a prime.

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 12100933.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 465408 + ... + 465433.

It is an arithmetic number, because the mean of its divisors is an integer number (3257947).

Almost surely, 212100933 is an apocalyptic number.

12100933 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12100933 is a deficient number, since it is larger than the sum of its proper divisors (930855).

12100933 is an equidigital number, since it uses as much as digits as its factorization.

12100933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930854.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 12100933 is about 3478.6395329209. The cubic root of 12100933 is about 229.5829430141.

The spelling of 12100933 in words is "twelve million, one hundred thousand, nine hundred thirty-three".

Divisors: 1 13 930841 12100933