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12153545234 = 231323578237
BaseRepresentation
bin10110101000110100…
…00110001000010010
31011101000001001210222
423110122012020102
5144342301421414
65325552353042
7610114300325
oct132432061022
934330031728
1012153545234
1151773a5466
122432245782
1311b8c052ac
1483418a7bc
154b1ea068e
hex2d4686212

12153545234 has 16 divisors (see below), whose sum is σ = 18298542168. Its totient is φ = 6054052992.

The previous prime is 12153545227. The next prime is 12153545273. The reversal of 12153545234 is 43254535121.

It can be written as a sum of positive squares in 4 ways, for example, as 5288925625 + 6864619609 = 72725^2 + 82853^2 .

It is a super-2 number, since 2×121535452342 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12153545194 and 12153545203.

It is an unprimeable number.

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, 1471364 + ... + 1479600.

Almost surely, 212153545234 is an apocalyptic number.

12153545234 is a deficient number, since it is larger than the sum of its proper divisors (6144996934).

12153545234 is a wasteful number, since it uses less digits than its factorization.

12153545234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10909.

The product of its digits is 72000, while the sum is 35.

The spelling of 12153545234 in words is "twelve billion, one hundred fifty-three million, five hundred forty-five thousand, two hundred thirty-four".

Divisors: 1 2 313 626 2357 4714 8237 16474 737741 1475482 2578181 5156362 19414609 38829218 6076772617 12153545234