Base | Representation |
---|---|
bin | 10001101001101010100… |
… | …110000010001100000000 |
3 | 11021221212220102022121022 |
4 | 101221222212002030000 |
5 | 124333130044222200 |
6 | 2325121430045012 |
7 | 153430335340565 |
oct | 21515246021400 |
9 | 4257786368538 |
10 | 1212969132800 |
11 | 4284654a9567 |
12 | 1770b8aa9768 |
13 | 8a4c846ca99 |
14 | 429cab3a86c |
15 | 21843591885 |
hex | 11a6a982300 |
1212969132800 has 54 divisors (see below), whose sum is σ = 3002288145948. Its totient is φ = 485187650560.
The previous prime is 1212969132797. The next prime is 1212969132841. The reversal of 1212969132800 is 82319692121.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 94756814 + ... + 94769613.
Almost surely, 21212969132800 is an apocalyptic number.
1212969132800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1212969132800 is an abundant number, since it is smaller than the sum of its proper divisors (1789319013148).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1212969132800 is an equidigital number, since it uses as much as digits as its factorization.
1212969132800 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 189526453 (or 189526434 counting only the distinct ones).
The product of its (nonzero) digits is 93312, while the sum is 44.
The spelling of 1212969132800 in words is "one trillion, two hundred twelve billion, nine hundred sixty-nine million, one hundred thirty-two thousand, eight hundred".
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