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12073013 = 17967447
BaseRepresentation
bin101110000011…
…100000110101
3211201101001122
4232003200311
511042314023
61110433325
7204422201
oct56034065
924641048
1012073013
1168a66a7
124062845
1326692c4
141863b01
1510d72c8
hexb83835

12073013 has 4 divisors (see below), whose sum is σ = 12140640. Its totient is φ = 12005388.

The previous prime is 12073003. The next prime is 12073021. The reversal of 12073013 is 31037021.

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.

It is a cyclic number.

It is not a de Polignac number, because 12073013 - 216 = 12007477 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12072982 and 12073000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12073003) 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, 33545 + ... + 33902.

It is an arithmetic number, because the mean of its divisors is an integer number (3035160).

Almost surely, 212073013 is an apocalyptic number.

It is an amenable number.

12073013 is a deficient number, since it is larger than the sum of its proper divisors (67627).

12073013 is an equidigital number, since it uses as much as digits as its factorization.

12073013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67626.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 12073013 is about 3474.6241523365. The cubic root of 12073013 is about 229.4062378540.

The spelling of 12073013 in words is "twelve million, seventy-three thousand, thirteen".

Divisors: 1 179 67447 12073013