Base | Representation |
---|---|
bin | 100000001111001111111… |
… | …110000001001000000000 |
3 | 21211210022211212100111021 |
4 | 200033033332001020000 |
5 | 242244113202024223 |
6 | 4413423420355224 |
7 | 316025416222510 |
oct | 40171776011000 |
9 | 7753284770437 |
10 | 2215397298688 |
11 | 7845aa024422 |
12 | 2b94380a5b14 |
13 | 130bac806472 |
14 | 79323855840 |
15 | 3c96309465d |
hex | 203cff81200 |
2215397298688 has 40 divisors (see below), whose sum is σ = 5058820179072. Its totient is φ = 949455983616.
The previous prime is 2215397298607. The next prime is 2215397298689. The reversal of 2215397298688 is 8868927935122.
It is not an unprimeable number, because it can be changed into a prime (2215397298689) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309064120 + ... + 309071287.
Almost surely, 22215397298688 is an apocalyptic number.
2215397298688 is a gapful number since it is divisible by the number (28) formed by its first and last digit.
It is an amenable number.
2215397298688 is an abundant number, since it is smaller than the sum of its proper divisors (2843422880384).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2215397298688 is an frugal number, since it uses more digits than its factorization.
2215397298688 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 618135432 (or 618135416 counting only the distinct ones).
The product of its digits is 209018880, while the sum is 70.
The spelling of 2215397298688 in words is "two trillion, two hundred fifteen billion, three hundred ninety-seven million, two hundred ninety-eight thousand, six hundred eighty-eight".
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