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12152523023 = 31051391373
BaseRepresentation
bin10110101000101100…
…01100100100001111
31011100221010010121022
423110112030210033
5144342021214043
65325514424355
7610102512164
oct132426144417
934327103538
1012152523023
115176867463
122431a320bb
1311b8937c34
14833da206b
154b1d4c868
hex2d458c90f

12152523023 has 4 divisors (see below), whose sum is σ = 12152945448. Its totient is φ = 12152100600.

The previous prime is 12152523007. The next prime is 12152523043. The reversal of 12152523023 is 32032525121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12152523023 - 24 = 12152523007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12152522983 and 12152523001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12152523043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164636 + ... + 226737.

It is an arithmetic number, because the mean of its divisors is an integer number (3038236362).

Almost surely, 212152523023 is an apocalyptic number.

12152523023 is a deficient number, since it is larger than the sum of its proper divisors (422425).

12152523023 is an equidigital number, since it uses as much as digits as its factorization.

12152523023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422424.

The product of its (nonzero) digits is 3600, while the sum is 26.

The spelling of 12152523023 in words is "twelve billion, one hundred fifty-two million, five hundred twenty-three thousand, twenty-three".

Divisors: 1 31051 391373 12152523023