Base | Representation |
---|---|
bin | 1100001100000… |
… | …10000101001001 |
3 | 21010101120100001 |
4 | 12012002011021 |
5 | 202133312211 |
6 | 14051243001 |
7 | 2351031310 |
oct | 606020511 |
9 | 233346301 |
10 | 102244681 |
11 | 52794a40 |
12 | 2a2a9461 |
13 | 1824b416 |
14 | d817277 |
15 | 8e99ac1 |
hex | 6182149 |
102244681 has 32 divisors (see below), whose sum is σ = 142110720. Its totient is φ = 71020800.
The previous prime is 102244657. The next prime is 102244697. The reversal of 102244681 is 186442201.
It is a cyclic number.
It is not a de Polignac number, because 102244681 - 213 = 102236489 is a prime.
It is a super-2 number, since 2×1022446812 = 20907949585583522, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (102244631) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22816 + ... + 26926.
It is an arithmetic number, because the mean of its divisors is an integer number (4440960).
Almost surely, 2102244681 is an apocalyptic number.
102244681 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
102244681 is a deficient number, since it is larger than the sum of its proper divisors (39866039).
102244681 is a wasteful number, since it uses less digits than its factorization.
102244681 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4165.
The product of its (nonzero) digits is 3072, while the sum is 28.
The square root of 102244681 is about 10111.6111970348. The cubic root of 102244681 is about 467.6061790912.
Adding to 102244681 its reverse (186442201), we get a palindrome (288686882).
The spelling of 102244681 in words is "one hundred two million, two hundred forty-four thousand, six hundred eighty-one".
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