Base | Representation |
---|---|
bin | 1100001011111… |
… | …01000001110101 |
3 | 21010100111221200 |
4 | 12011331001311 |
5 | 202132131424 |
6 | 14051003113 |
7 | 2350614060 |
oct | 605750165 |
9 | 233314850 |
10 | 102223989 |
11 | 5278043a |
12 | 2a299499 |
13 | 18241b8a |
14 | d80d8d7 |
15 | 8e938c9 |
hex | 617d075 |
102223989 has 24 divisors (see below), whose sum is σ = 169071552. Its totient is φ = 58302720.
The previous prime is 102223987. The next prime is 102223991. The reversal of 102223989 is 989322201.
It is an interprime number because it is at equal distance from previous prime (102223987) and next prime (102223991).
It is not a de Polignac number, because 102223989 - 21 = 102223987 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (102223987) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41194 + ... + 43604.
It is an arithmetic number, because the mean of its divisors is an integer number (7044648).
Almost surely, 2102223989 is an apocalyptic number.
It is an amenable number.
102223989 is a deficient number, since it is larger than the sum of its proper divisors (66847563).
102223989 is a wasteful number, since it uses less digits than its factorization.
102223989 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3097 (or 3094 counting only the distinct ones).
The product of its (nonzero) digits is 15552, while the sum is 36.
The square root of 102223989 is about 10110.5879650988. The cubic root of 102223989 is about 467.5746326748.
The spelling of 102223989 in words is "one hundred two million, two hundred twenty-three thousand, nine hundred eighty-nine".
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