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12038313 = 37573253
BaseRepresentation
bin101101111011…
…000010101001
3211122121110110
4231323002221
511040211223
61110004533
7204216060
oct55730251
924577413
1012038313
116882621
124046749
132656581
1418551d7
1510cbd93
hexb7b0a9

12038313 has 8 divisors (see below), whose sum is σ = 18344128. Its totient is φ = 6879024.

The previous prime is 12038311. The next prime is 12038317. The reversal of 12038313 is 31383021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12038313 - 21 = 12038311 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 573253 = 12038313 / (1 + 2 + 0 + 3 + 8 + 3 + 1 + 3).

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 12038313.

It is not an unprimeable number, because it can be changed into a prime (12038311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286606 + ... + 286647.

It is an arithmetic number, because the mean of its divisors is an integer number (2293016).

Almost surely, 212038313 is an apocalyptic number.

It is an amenable number.

12038313 is a deficient number, since it is larger than the sum of its proper divisors (6305815).

12038313 is an equidigital number, since it uses as much as digits as its factorization.

12038313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573263.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 12038313 is about 3469.6272134049. The cubic root of 12038313 is about 229.1862420891.

The spelling of 12038313 in words is "twelve million, thirty-eight thousand, three hundred thirteen".

Divisors: 1 3 7 21 573253 1719759 4012771 12038313