Base | Representation |
---|---|
bin | 111110111010100… |
… | …1111101110001001 |
3 | 12110010102111112012 |
4 | 1331311033232021 |
5 | 13310421010100 |
6 | 545252225305 |
7 | 103213065503 |
oct | 17565175611 |
9 | 5403374465 |
10 | 2111110025 |
11 | 993737232 |
12 | 4ab00b235 |
13 | 2784aaa3b |
14 | 16053cd73 |
15 | c550e135 |
hex | 7dd4fb89 |
2111110025 has 12 divisors (see below), whose sum is σ = 2618832012. Its totient is φ = 1688207040.
The previous prime is 2111110019. The next prime is 2111110033. The reversal of 2111110025 is 5200111112.
It can be written as a sum of positive squares in 6 ways, for example, as 6869641 + 2104240384 = 2621^2 + 45872^2 .
It is not a de Polignac number, because 2111110025 - 26 = 2111109961 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 2111109991 and 2111110009.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51647 + ... + 83003.
It is an arithmetic number, because the mean of its divisors is an integer number (218236001).
Almost surely, 22111110025 is an apocalyptic number.
2111110025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
2111110025 is a deficient number, since it is larger than the sum of its proper divisors (507721987).
2111110025 is a wasteful number, since it uses less digits than its factorization.
2111110025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 34060 (or 34055 counting only the distinct ones).
The product of its (nonzero) digits is 20, while the sum is 14.
The square root of 2111110025 is about 45946.8173544153. The cubic root of 2111110025 is about 1282.8334904308.
Adding to 2111110025 its reverse (5200111112), we get a palindrome (7311221137).
The spelling of 2111110025 in words is "two billion, one hundred eleven million, one hundred ten thousand, twenty-five".
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