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12304545545 = 537972692549
BaseRepresentation
bin10110111010110100…
…00111011100001001
31011202112011200022002
423131122013130021
5200144430424140
65352545040345
7613626624425
oct133532073411
934675150262
1012304545545
115244660206
1224749260b5
1312112945a6
1484a255b85
154c037b415
hex2dd687709

12304545545 has 32 divisors (see below), whose sum is σ = 15383844000. Its totient is φ = 9439911936.

The previous prime is 12304545523. The next prime is 12304545553. The reversal of 12304545545 is 54554540321.

It can be written as a sum of positive squares in 16 ways, for example, as 881852416 + 11422693129 = 29696^2 + 106877^2 .

It is a cyclic number.

It is not a de Polignac number, because 12304545545 - 28 = 12304545289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12304545499 and 12304545508.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4825931 + ... + 4828479.

It is an arithmetic number, because the mean of its divisors is an integer number (480745125).

Almost surely, 212304545545 is an apocalyptic number.

It is an amenable number.

12304545545 is a deficient number, since it is larger than the sum of its proper divisors (3079298455).

12304545545 is a wasteful number, since it uses less digits than its factorization.

12304545545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2957.

The product of its (nonzero) digits is 240000, while the sum is 38.

The spelling of 12304545545 in words is "twelve billion, three hundred four million, five hundred forty-five thousand, five hundred forty-five".

Divisors: 1 5 37 97 185 269 485 1345 2549 3589 9953 12745 17945 26093 49765 94313 130465 247253 471565 685681 965441 1236265 3428405 4827205 9148361 25370197 45741805 66511057 126850985 332555285 2460909109 12304545545