Base | Representation |
---|---|
bin | 111110110011111… |
… | …1110011010010001 |
3 | 12102212212202112122 |
4 | 1331213332122101 |
5 | 13304023144444 |
6 | 545045504025 |
7 | 103141366343 |
oct | 17547763221 |
9 | 5385782478 |
10 | 2107631249 |
11 | 991780609 |
12 | 4a9a12015 |
13 | 2778604a9 |
14 | 15dcb5293 |
15 | c50734ee |
hex | 7d9fe691 |
2107631249 has 2 divisors, whose sum is σ = 2107631250. Its totient is φ = 2107631248.
The previous prime is 2107631189. The next prime is 2107631341. The reversal of 2107631249 is 9421367012.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 1373221249 + 734410000 = 37057^2 + 27100^2 .
It is a cyclic number.
It is not a de Polignac number, because 2107631249 - 212 = 2107627153 is a prime.
It is a super-2 number, since 2×21076312492 = 8884218963522600002, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (2107630249) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1053815624 + 1053815625.
It is an arithmetic number, because the mean of its divisors is an integer number (1053815625).
Almost surely, 22107631249 is an apocalyptic number.
It is an amenable number.
2107631249 is a deficient number, since it is larger than the sum of its proper divisors (1).
2107631249 is an equidigital number, since it uses as much as digits as its factorization.
2107631249 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 18144, while the sum is 35.
The square root of 2107631249 is about 45908.9451958984. The cubic root of 2107631249 is about 1282.1284673511.
It can be divided in two parts, 21076 and 31249, that added together give a palindrome (52325).
The spelling of 2107631249 in words is "two billion, one hundred seven million, six hundred thirty-one thousand, two hundred forty-nine".
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