Base | Representation |
---|---|
bin | 10111010000110010… |
… | …00001100110111001 |
3 | 1012020100220020002101 |
4 | 23220121001212321 |
5 | 201034113341024 |
6 | 5423130303401 |
7 | 621325060354 |
oct | 135031014671 |
9 | 35210806071 |
10 | 12488808889 |
11 | 5329674a67 |
12 | 2506587b61 |
13 | 12404cbb5b |
14 | 8668dd29b |
15 | 4d1627c44 |
hex | 2e86419b9 |
12488808889 has 16 divisors (see below), whose sum is σ = 14025718080. Its totient is φ = 11050490880.
The previous prime is 12488808887. The next prime is 12488808973. The reversal of 12488808889 is 98880888421.
It is a cyclic number.
It is not a de Polignac number, because 12488808889 - 21 = 12488808887 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 12488808889.
It is not an unprimeable number, because it can be changed into a prime (12488808881) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105264 + ... + 189889.
It is an arithmetic number, because the mean of its divisors is an integer number (876607380).
Almost surely, 212488808889 is an apocalyptic number.
12488808889 is a gapful number since it is divisible by the number (19) formed by its first and last digit.
It is an amenable number.
12488808889 is a deficient number, since it is larger than the sum of its proper divisors (1536909191).
12488808889 is a wasteful number, since it uses less digits than its factorization.
12488808889 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 295320.
The product of its (nonzero) digits is 18874368, while the sum is 64.
The spelling of 12488808889 in words is "twelve billion, four hundred eighty-eight million, eight hundred eight thousand, eight hundred eighty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •