Base | Representation |
---|---|
bin | 1001010001110101… |
… | …0010011111000001 |
3 | 20102120200222010002 |
4 | 2110131102133001 |
5 | 20100110041412 |
6 | 1051052245345 |
7 | 115502436053 |
oct | 22435223701 |
9 | 6376628102 |
10 | 2490705857 |
11 | 1068a361a2 |
12 | 596170855 |
13 | 309026c63 |
14 | 198b118d3 |
15 | e89e1dc2 |
hex | 947527c1 |
2490705857 has 8 divisors (see below), whose sum is σ = 2606452800. Its totient is φ = 2375580240.
The previous prime is 2490705809. The next prime is 2490705859. The reversal of 2490705857 is 7585070942.
It is a happy number.
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 2490705857 - 26 = 2490705793 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2490705859) 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, 147119 + ... + 163172.
It is an arithmetic number, because the mean of its divisors is an integer number (325806600).
Almost surely, 22490705857 is an apocalyptic number.
It is an amenable number.
2490705857 is a deficient number, since it is larger than the sum of its proper divisors (115746943).
2490705857 is a wasteful number, since it uses less digits than its factorization.
2490705857 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 310663.
The product of its (nonzero) digits is 705600, while the sum is 47.
The square root of 2490705857 is about 49906.9720279642. The cubic root of 2490705857 is about 1355.5248407328.
The spelling of 2490705857 in words is "two billion, four hundred ninety million, seven hundred five thousand, eight hundred fifty-seven".
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