Base | Representation |
---|---|
bin | 111110111100100… |
… | …1110010100000111 |
3 | 12110012101110222221 |
4 | 1331321032110013 |
5 | 13311202342324 |
6 | 545330433211 |
7 | 103225000666 |
oct | 17571162407 |
9 | 5405343887 |
10 | 2112152839 |
11 | 994289765 |
12 | 4ab432807 |
13 | 2787845a4 |
14 | 160730ddd |
15 | c56680e4 |
hex | 7de4e507 |
2112152839 has 2 divisors, whose sum is σ = 2112152840. Its totient is φ = 2112152838.
The previous prime is 2112152837. The next prime is 2112152857. The reversal of 2112152839 is 9382512112.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 2112152839 - 21 = 2112152837 is a prime.
It is a super-2 number, since 2×21121528392 = 8922379230591519842, which contains 22 as substring.
Together with 2112152837, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2112152837) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056076419 + 1056076420.
It is an arithmetic number, because the mean of its divisors is an integer number (1056076420).
Almost surely, 22112152839 is an apocalyptic number.
2112152839 is a deficient number, since it is larger than the sum of its proper divisors (1).
2112152839 is an equidigital number, since it uses as much as digits as its factorization.
2112152839 is an evil number, because the sum of its binary digits is even.
The product of its digits is 8640, while the sum is 34.
The square root of 2112152839 is about 45958.1640081498. The cubic root of 2112152839 is about 1283.0446805156.
The spelling of 2112152839 in words is "two billion, one hundred twelve million, one hundred fifty-two thousand, eight hundred thirty-nine".
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