Base | Representation |
---|---|
bin | 10110100110110111… |
… | …11110100011101000 |
3 | 1011022212101202102212 |
4 | 23103123332203220 |
5 | 144324114330123 |
6 | 5324211344252 |
7 | 606526006265 |
oct | 132333764350 |
9 | 34285352385 |
10 | 12137261288 |
11 | 5169193059 |
12 | 24288b2088 |
13 | 11b5723419 |
14 | 831d4c26c |
15 | 4b0835878 |
hex | 2d36fe8e8 |
12137261288 has 16 divisors (see below), whose sum is σ = 22758857280. Its totient is φ = 6068232688.
The previous prime is 12137261281. The next prime is 12137261303. The reversal of 12137261288 is 88216273121.
It is a super-2 number, since 2×121372612882 (a number of 21 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (12137261281) 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, 110081 + ... + 190767.
It is an arithmetic number, because the mean of its divisors is an integer number (1422428580).
Almost surely, 212137261288 is an apocalyptic number.
It is an amenable number.
12137261288 is a deficient number, since it is larger than the sum of its proper divisors (10621595992).
12137261288 is a wasteful number, since it uses less digits than its factorization.
12137261288 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 99496 (or 99492 counting only the distinct ones).
The product of its digits is 64512, while the sum is 41.
The spelling of 12137261288 in words is "twelve billion, one hundred thirty-seven million, two hundred sixty-one thousand, two hundred eighty-eight".
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