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12131656023 = 37735231417
BaseRepresentation
bin10110100110001101…
…00110000101010111
31011022110211222110110
423103012212011113
5144321200443043
65323451254103
7606430242354
oct132306460527
934273758413
1012131656023
115166004803
122426a4a333
1311b450ccb6
148312cd62b
154b00c9b33
hex2d31a6157

12131656023 has 8 divisors (see below), whose sum is σ = 16196470128. Its totient is φ = 8077306304.

The previous prime is 12131655997. The next prime is 12131656057. The reversal of 12131656023 is 32065613121.

12131656023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12131656023 - 216 = 12131590487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131656723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2613390 + ... + 2618027.

It is an arithmetic number, because the mean of its divisors is an integer number (2024558766).

Almost surely, 212131656023 is an apocalyptic number.

12131656023 is a deficient number, since it is larger than the sum of its proper divisors (4064814105).

12131656023 is an equidigital number, since it uses as much as digits as its factorization.

12131656023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5232193.

The product of its (nonzero) digits is 6480, while the sum is 30.

The spelling of 12131656023 in words is "twelve billion, one hundred thirty-one million, six hundred fifty-six thousand, twenty-three".

Divisors: 1 3 773 2319 5231417 15694251 4043885341 12131656023