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13044021131 = 40136718861
BaseRepresentation
bin11000010010111101…
…11111011110001011
31020200001121221002202
430021132333132023
5203203232134011
65554202350415
7641146231061
oct141136773613
936601557082
1013044021131
115594012159
1226404bb40b
1312cb5458cb
148ba548031
1551524a23b
hex3097bf78b

13044021131 has 8 divisors (see below), whose sum is σ = 13081588128. Its totient is φ = 13006480000.

The previous prime is 13044021101. The next prime is 13044021173. The reversal of 13044021131 is 13112044031.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13044021131 is a prime.

It is a super-2 number, since 2×130440211312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13044021101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1467641 + ... + 1476501.

It is an arithmetic number, because the mean of its divisors is an integer number (1635198516).

Almost surely, 213044021131 is an apocalyptic number.

13044021131 is a deficient number, since it is larger than the sum of its proper divisors (37566997).

13044021131 is an equidigital number, since it uses as much as digits as its factorization.

13044021131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12933.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 13044021131 its reverse (13112044031), we get a palindrome (26156065162).

The spelling of 13044021131 in words is "thirteen billion, forty-four million, twenty-one thousand, one hundred thirty-one".

Divisors: 1 401 3671 8861 1472071 3553261 32528731 13044021131