Base | Representation |
---|---|
bin | 111011110111101… |
… | …0111110110000001 |
3 | 12012000010001112001 |
4 | 1313233113312001 |
5 | 13103240012022 |
6 | 531201504001 |
7 | 100532300056 |
oct | 16757276601 |
9 | 5160101461 |
10 | 2008907137 |
11 | 940a80736 |
12 | 480942001 |
13 | 260275663 |
14 | 150b3702d |
15 | bb571b27 |
hex | 77bd7d81 |
2008907137 has 4 divisors (see below), whose sum is σ = 2011113216. Its totient is φ = 2006701060.
The previous prime is 2008907129. The next prime is 2008907149. The reversal of 2008907137 is 7317098002.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7317098002 = 2 ⋅3658549001.
It is a cyclic number.
It is not a de Polignac number, because 2008907137 - 23 = 2008907129 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 2008907096 and 2008907105.
It is not an unprimeable number, because it can be changed into a prime (2008907237) 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, 1101673 + ... + 1103494.
It is an arithmetic number, because the mean of its divisors is an integer number (502778304).
Almost surely, 22008907137 is an apocalyptic number.
It is an amenable number.
2008907137 is a deficient number, since it is larger than the sum of its proper divisors (2206079).
2008907137 is an equidigital number, since it uses as much as digits as its factorization.
2008907137 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2206078.
The product of its (nonzero) digits is 21168, while the sum is 37.
The square root of 2008907137 is about 44820.8337383409. The cubic root of 2008907137 is about 1261.7886616871.
The spelling of 2008907137 in words is "two billion, eight million, nine hundred seven thousand, one hundred thirty-seven".
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