Base | Representation |
---|---|
bin | 11101111100100000000… |
… | …110010100001100100000 |
3 | 21021201121120011120120002 |
4 | 131330200012110030200 |
5 | 232203412413030110 |
6 | 4213204132435132 |
7 | 301446615133562 |
oct | 35744006241440 |
9 | 7251546146502 |
10 | 2057827861280 |
11 | 7237a11a8984 |
12 | 2929a2478aa8 |
13 | 11c08ac96579 |
14 | 71856a79332 |
15 | 387debb8aa5 |
hex | 1df20194320 |
2057827861280 has 48 divisors (see below), whose sum is σ = 4909753195704. Its totient is φ = 814981324800.
The previous prime is 2057827861259. The next prime is 2057827861283. The reversal of 2057827861280 is 821687287502.
It can be written as a sum of positive squares in 4 ways, for example, as 1780634035216 + 277193826064 = 1334404^2 + 526492^2 .
It is not an unprimeable number, because it can be changed into a prime (2057827861283) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63654257 + ... + 63686576.
Almost surely, 22057827861280 is an apocalyptic number.
2057827861280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2057827861280 is an abundant number, since it is smaller than the sum of its proper divisors (2851925334424).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2057827861280 is a wasteful number, since it uses less digits than its factorization.
2057827861280 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 127340949 (or 127340941 counting only the distinct ones).
The product of its (nonzero) digits is 6021120, while the sum is 56.
The spelling of 2057827861280 in words is "two trillion, fifty-seven billion, eight hundred twenty-seven million, eight hundred sixty-one thousand, two hundred eighty".
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