Base | Representation |
---|---|
bin | 111110000000000… |
… | …1010100010000001 |
3 | 12100222200011212121 |
4 | 1330000022202001 |
5 | 13230041333141 |
6 | 542234324241 |
7 | 102361155241 |
oct | 17400124201 |
9 | 5328604777 |
10 | 2080417921 |
11 | 97838385a |
12 | 4a0889681 |
13 | 272022a2a |
14 | 15a42db21 |
15 | c299a1d1 |
hex | 7c00a881 |
2080417921 has 8 divisors (see below), whose sum is σ = 2153111400. Its totient is φ = 2007788160.
The previous prime is 2080417903. The next prime is 2080417951. The reversal of 2080417921 is 1297140802.
It can be written as a sum of positive squares in 4 ways, for example, as 6890625 + 2073527296 = 2625^2 + 45536^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 2080417921 - 217 = 2080286849 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2080417951) 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, 56095 + ... + 85483.
It is an arithmetic number, because the mean of its divisors is an integer number (269138925).
Almost surely, 22080417921 is an apocalyptic number.
It is an amenable number.
2080417921 is a deficient number, since it is larger than the sum of its proper divisors (72693479).
2080417921 is a wasteful number, since it uses less digits than its factorization.
2080417921 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 31859.
The product of its (nonzero) digits is 8064, while the sum is 34.
The square root of 2080417921 is about 45611.5985358987. The cubic root of 2080417921 is about 1276.5863470781.
The spelling of 2080417921 in words is "two billion, eighty million, four hundred seventeen thousand, nine hundred twenty-one".
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