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12076813 = 71725259
BaseRepresentation
bin101110000100…
…011100001101
3211201120021101
4232010130031
511042424223
61110503101
7204436240
oct56043415
924646241
1012076813
1168a9541
124064a91
13266ac58
141865257
1510d84ad
hexb8470d

12076813 has 4 divisors (see below), whose sum is σ = 13802080. Its totient is φ = 10351548.

The previous prime is 12076807. The next prime is 12076819. The reversal of 12076813 is 31867021.

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 an emirpimes, since its reverse is a distinct semiprime: 31867021 = 59540119.

It is an interprime number because it is at equal distance from previous prime (12076807) and next prime (12076819).

It is a cyclic number.

It is not a de Polignac number, because 12076813 - 25 = 12076781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12076819) 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, 862623 + ... + 862636.

It is an arithmetic number, because the mean of its divisors is an integer number (3450520).

Almost surely, 212076813 is an apocalyptic number.

It is an amenable number.

12076813 is a deficient number, since it is larger than the sum of its proper divisors (1725267).

12076813 is an equidigital number, since it uses as much as digits as its factorization.

12076813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1725266.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 12076813 is about 3475.1709310479. The cubic root of 12076813 is about 229.4303039883.

The spelling of 12076813 in words is "twelve million, seventy-six thousand, eight hundred thirteen".

Divisors: 1 7 1725259 12076813