Base | Representation |
---|---|
bin | 111101010011100… |
… | …0111000000101000 |
3 | 12022100202010020001 |
4 | 1322213013000220 |
5 | 13203102311210 |
6 | 540042112344 |
7 | 101655554305 |
oct | 17247070050 |
9 | 5270663201 |
10 | 2057072680 |
11 | 966189173 |
12 | 494aab6b4 |
13 | 26a23aa90 |
14 | 1572b40ac |
15 | c08d803a |
hex | 7a9c7028 |
2057072680 has 32 divisors (see below), whose sum is σ = 4984446600. Its totient is φ = 759534336.
The previous prime is 2057072653. The next prime is 2057072687. The reversal of 2057072680 is 862707502.
It can be written as a sum of positive squares in 4 ways, for example, as 1397712996 + 659359684 = 37386^2 + 25678^2 .
It is not an unprimeable number, because it can be changed into a prime (2057072687) 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, 1977435 + ... + 1978474.
Almost surely, 22057072680 is an apocalyptic number.
2057072680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2057072680 is an abundant number, since it is smaller than the sum of its proper divisors (2927373920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2057072680 is a wasteful number, since it uses less digits than its factorization.
2057072680 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3955933 (or 3955929 counting only the distinct ones).
The product of its (nonzero) digits is 47040, while the sum is 37.
The square root of 2057072680 is about 45354.9631242271. The cubic root of 2057072680 is about 1271.7933372702.
The spelling of 2057072680 in words is "two billion, fifty-seven million, seventy-two thousand, six hundred eighty".
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