Base | Representation |
---|---|
bin | 10111101101100010… |
… | …01010110000111001 |
3 | 1012212011202221222111 |
4 | 23312301022300321 |
5 | 202032341100443 |
6 | 5503104252321 |
7 | 630314242435 |
oct | 136661126071 |
9 | 35764687874 |
10 | 12730018873 |
11 | 5442844660 |
12 | 25733110a1 |
13 | 127b484660 |
14 | 88a96b9c5 |
15 | 4e78c269d |
hex | 2f6c4ac39 |
12730018873 has 32 divisors (see below), whose sum is σ = 15170706432. Its totient is φ = 10529870400.
The previous prime is 12730018859. The next prime is 12730018879. The reversal of 12730018873 is 37881003721.
It is a cyclic number.
It is not a de Polignac number, because 12730018873 - 217 = 12729887801 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12730018879) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3226540 + ... + 3230482.
It is an arithmetic number, because the mean of its divisors is an integer number (474084576).
Almost surely, 212730018873 is an apocalyptic number.
12730018873 is a gapful number since it is divisible by the number (13) formed by its first and last digit.
It is an amenable number.
12730018873 is a deficient number, since it is larger than the sum of its proper divisors (2440687559).
12730018873 is a wasteful number, since it uses less digits than its factorization.
12730018873 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4285.
The product of its (nonzero) digits is 56448, while the sum is 40.
The spelling of 12730018873 in words is "twelve billion, seven hundred thirty million, eighteen thousand, eight hundred seventy-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •