Base | Representation |
---|---|
bin | 111111000010111… |
… | …1100000001101111 |
3 | 12110102122210222012 |
4 | 1332011330001233 |
5 | 13313031021212 |
6 | 545530111435 |
7 | 103265222051 |
oct | 17605740157 |
9 | 5412583865 |
10 | 2115485807 |
11 | 996155886 |
12 | 4b057b57b |
13 | 279380666 |
14 | 160d5b8d1 |
15 | c5ac5922 |
hex | 7e17c06f |
2115485807 has 2 divisors, whose sum is σ = 2115485808. Its totient is φ = 2115485806.
The previous prime is 2115485803. The next prime is 2115485819. The reversal of 2115485807 is 7085845112.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 2115485807 - 22 = 2115485803 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2115485803) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1057742903 + 1057742904.
It is an arithmetic number, because the mean of its divisors is an integer number (1057742904).
Almost surely, 22115485807 is an apocalyptic number.
2115485807 is a deficient number, since it is larger than the sum of its proper divisors (1).
2115485807 is an equidigital number, since it uses as much as digits as its factorization.
2115485807 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 89600, while the sum is 41.
The square root of 2115485807 is about 45994.4106060726. The cubic root of 2115485807 is about 1283.7192054840.
The spelling of 2115485807 in words is "two billion, one hundred fifteen million, four hundred eighty-five thousand, eight hundred seven".
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