Base | Representation |
---|---|
bin | 11000001101011110… |
… | …01111010111110010 |
3 | 1020112211221012220100 |
4 | 30012233033113302 |
5 | 203104433331124 |
6 | 5545435053230 |
7 | 640046512536 |
oct | 140657172762 |
9 | 36484835810 |
10 | 12997948914 |
11 | 5570004445 |
12 | 2628ba1216 |
13 | 12c1b34242 |
14 | 8b4393bc6 |
15 | 5111991c9 |
hex | 306bcf5f2 |
12997948914 has 24 divisors (see below), whose sum is σ = 28182265020. Its totient is φ = 4329566208.
The previous prime is 12997948903. The next prime is 12997948933. The reversal of 12997948914 is 41984979921.
It can be written as a sum of positive squares in 2 ways, for example, as 9526736025 + 3471212889 = 97605^2 + 58917^2 .
It is a super-3 number, since 3×129979489143 (a number of 31 digits) contains 333 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 230887 + ... + 281610.
Almost surely, 212997948914 is an apocalyptic number.
12997948914 is an abundant number, since it is smaller than the sum of its proper divisors (15184316106).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12997948914 is a wasteful number, since it uses less digits than its factorization.
12997948914 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 513914 (or 513911 counting only the distinct ones).
The product of its digits is 11757312, while the sum is 63.
The spelling of 12997948914 in words is "twelve billion, nine hundred ninety-seven million, nine hundred forty-eight thousand, nine hundred fourteen".
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