Base | Representation |
---|---|
bin | 10110011000111110… |
… | …01101100001001000 |
3 | 1011000202000020012000 |
4 | 23030133031201020 |
5 | 144104242342423 |
6 | 5304444351000 |
7 | 603611665503 |
oct | 131437154110 |
9 | 34022006160 |
10 | 12020668488 |
11 | 5109399174 |
12 | 23b5845460 |
13 | 11975202ba |
14 | 82067c13a |
15 | 4a54a4843 |
hex | 2cc7cd848 |
12020668488 has 64 divisors (see below), whose sum is σ = 34101216000. Its totient is φ = 3921633216.
The previous prime is 12020668481. The next prime is 12020668493. The reversal of 12020668488 is 88486602021.
It is a super-2 number, since 2×120206684882 (a number of 21 digits) contains 22 as substring.
It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.
It is not an unprimeable number, because it can be changed into a prime (12020668481) 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, 581883 + ... + 602186.
It is an arithmetic number, because the mean of its divisors is an integer number (532831500).
Almost surely, 212020668488 is an apocalyptic number.
12020668488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
12020668488 is an abundant number, since it is smaller than the sum of its proper divisors (22080547512).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12020668488 is a wasteful number, since it uses less digits than its factorization.
12020668488 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1184131 (or 1184121 counting only the distinct ones).
The product of its (nonzero) digits is 294912, while the sum is 45.
The spelling of 12020668488 in words is "twelve billion, twenty million, six hundred sixty-eight thousand, four hundred eighty-eight".
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