Base | Representation |
---|---|
bin | 10111111110011111… |
… | …00101001010010010 |
3 | 1020020002022222020001 |
4 | 23333033211022102 |
5 | 202330241142132 |
6 | 5525144040214 |
7 | 633661654150 |
oct | 137717451222 |
9 | 36202288201 |
10 | 12872209042 |
11 | 55060321a0 |
12 | 25b2a6306a |
13 | 12a1a7a854 |
14 | 8a17c23d0 |
15 | 50510cce7 |
hex | 2ff3e5292 |
12872209042 has 64 divisors (see below), whose sum is σ = 24402583296. Its totient is φ = 4946780160.
The previous prime is 12872208991. The next prime is 12872209061. The reversal of 12872209042 is 24090227821.
It is a junction number, because it is equal to n+sod(n) for n = 12872208992 and 12872209010.
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, 5032828 + ... + 5035384.
It is an arithmetic number, because the mean of its divisors is an integer number (381290364).
Almost surely, 212872209042 is an apocalyptic number.
12872209042 is a deficient number, since it is larger than the sum of its proper divisors (11530374254).
12872209042 is a wasteful number, since it uses less digits than its factorization.
12872209042 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3011.
The product of its (nonzero) digits is 32256, while the sum is 37.
The spelling of 12872209042 in words is "twelve billion, eight hundred seventy-two million, two hundred nine thousand, forty-two".
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