Base | Representation |
---|---|
bin | 111110111010101… |
… | …0000010000010010 |
3 | 12110010102121112010 |
4 | 1331311100100102 |
5 | 13310421042320 |
6 | 545252243350 |
7 | 103213105044 |
oct | 17565202022 |
9 | 5403377463 |
10 | 2111112210 |
11 | 993738939 |
12 | 4ab010556 |
13 | 2784aba2c |
14 | 16053da94 |
15 | c550eae0 |
hex | 7dd50412 |
2111112210 has 16 divisors (see below), whose sum is σ = 5066669376. Its totient is φ = 562963248.
The previous prime is 2111112191. The next prime is 2111112229. The reversal of 2111112210 is 122111112.
It is an interprime number because it is at equal distance from previous prime (2111112191) and next prime (2111112229).
It is a super-2 number, since 2×21111122102 = 8913589526422168200, which contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35185174 + ... + 35185233.
It is an arithmetic number, because the mean of its divisors is an integer number (316666836).
Almost surely, 22111112210 is an apocalyptic number.
2111112210 is an abundant number, since it is smaller than the sum of its proper divisors (2955557166).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2111112210 is a wasteful number, since it uses less digits than its factorization.
2111112210 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 70370417.
The product of its (nonzero) digits is 8, while the sum is 12.
The square root of 2111112210 is about 45946.8411318994. The cubic root of 2111112210 is about 1282.8339330085.
Adding to 2111112210 its reverse (122111112), we get a palindrome (2233223322).
The spelling of 2111112210 in words is "two billion, one hundred eleven million, one hundred twelve thousand, two hundred ten".
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