Base | Representation |
---|---|
bin | 1001010001100000… |
… | …1110100101000001 |
3 | 20102111012120012022 |
4 | 2110120032211001 |
5 | 20044240113022 |
6 | 1051004011225 |
7 | 115455242060 |
oct | 22430164501 |
9 | 6374176168 |
10 | 2489379137 |
11 | 106820a433 |
12 | 595830b15 |
13 | 30898110b |
14 | 1988881d7 |
15 | e882dc42 |
hex | 9460e941 |
2489379137 has 4 divisors (see below), whose sum is σ = 2845004736. Its totient is φ = 2133753540.
The previous prime is 2489379133. The next prime is 2489379161. The reversal of 2489379137 is 7319739842.
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: 7319739842 = 2 ⋅3659869921.
It is a cyclic number.
It is not a de Polignac number, because 2489379137 - 22 = 2489379133 is a prime.
It is not an unprimeable number, because it can be changed into a prime (2489379133) 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, 177812789 + ... + 177812802.
It is an arithmetic number, because the mean of its divisors is an integer number (711251184).
Almost surely, 22489379137 is an apocalyptic number.
It is an amenable number.
2489379137 is a deficient number, since it is larger than the sum of its proper divisors (355625599).
2489379137 is an equidigital number, since it uses as much as digits as its factorization.
2489379137 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 355625598.
The product of its digits is 2286144, while the sum is 53.
The square root of 2489379137 is about 49893.6783270185. The cubic root of 2489379137 is about 1355.2841162914.
The spelling of 2489379137 in words is "two billion, four hundred eighty-nine million, three hundred seventy-nine thousand, one hundred thirty-seven".
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