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12100313 = 33073659
BaseRepresentation
bin101110001010…
…001011011001
3211202202111202
4232022023121
511044202223
61111203545
7204564611
oct56121331
924682452
1012100313
116915165
1240765b5
132678864
14186da41
1510e0428
hexb8a2d9

12100313 has 4 divisors (see below), whose sum is σ = 12107280. Its totient is φ = 12093348.

The previous prime is 12100307. The next prime is 12100327. The reversal of 12100313 is 31300121.

12100313 is digitally balanced in base 2, 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 a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 31300121 = 56955009.

It is a cyclic number.

It is not a de Polignac number, because 12100313 - 28 = 12100057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12100294 and 12100303.

It is not an unprimeable number, because it can be changed into a prime (12100303) 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, 1478 + ... + 5136.

It is an arithmetic number, because the mean of its divisors is an integer number (3026820).

Almost surely, 212100313 is an apocalyptic number.

It is an amenable number.

12100313 is a deficient number, since it is larger than the sum of its proper divisors (6967).

12100313 is an equidigital number, since it uses as much as digits as its factorization.

12100313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6966.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 12100313 is about 3478.5504164810. The cubic root of 12100313 is about 229.5790219981.

Adding to 12100313 its reverse (31300121), we get a palindrome (43400434).

The spelling of 12100313 in words is "twelve million, one hundred thousand, three hundred thirteen".

Divisors: 1 3307 3659 12100313