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2057827861280 = 255101127340833
BaseRepresentation
bin11101111100100000000…
…110010100001100100000
321021201121120011120120002
4131330200012110030200
5232203412413030110
64213204132435132
7301446615133562
oct35744006241440
97251546146502
102057827861280
117237a11a8984
122929a2478aa8
1311c08ac96579
1471856a79332
15387debb8aa5
hex1df20194320

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".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 101 160 202 404 505 808 1010 1616 2020 3232 4040 8080 16160 127340833 254681666 509363332 636704165 1018726664 1273408330 2037453328 2546816660 4074906656 5093633320 10187266640 12861424133 20374533280 25722848266 51445696532 64307120665 102891393064 128614241330 205782786128 257228482660 411565572256 514456965320 1028913930640 2057827861280