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12033013031 = 13937987851
BaseRepresentation
bin10110011010011100…
…10011010100100111
31011001121020101201022
423031032103110213
5144120422404111
65310005121355
7604121631434
oct131516232447
934047211638
1012033013031
11511535a876
1223b99b925b
131199c53070
14822172b8b
154a65e22db
hex2cd393527

12033013031 has 8 divisors (see below), whose sum is σ = 12972472464. Its totient is φ = 11095531200.

The previous prime is 12033013009. The next prime is 12033013067. The reversal of 12033013031 is 13031033021.

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

It is a de Polignac number, because none of the positive numbers 2k-12033013031 is a prime.

It is a super-2 number, since 2×120330130312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12033013001) 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, 481745 + ... + 506106.

It is an arithmetic number, because the mean of its divisors is an integer number (1621559058).

Almost surely, 212033013031 is an apocalyptic number.

12033013031 is a deficient number, since it is larger than the sum of its proper divisors (939459433).

12033013031 is an equidigital number, since it uses as much as digits as its factorization.

12033013031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988801.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 12033013031 its reverse (13031033021), we get a palindrome (25064046052).

The spelling of 12033013031 in words is "twelve billion, thirty-three million, thirteen thousand, thirty-one".

Divisors: 1 13 937 12181 987851 12842063 925616387 12033013031