Base | Representation |
---|---|
bin | 1100001011111… |
… | …00110010001011 |
3 | 21010100110120120 |
4 | 12011330302023 |
5 | 202132113422 |
6 | 14050554323 |
7 | 2350611126 |
oct | 605746213 |
9 | 233313516 |
10 | 102222987 |
11 | 5277a709 |
12 | 2a2989a3 |
13 | 18241599 |
14 | d80d3bd |
15 | 8e9345c |
hex | 617cc8b |
102222987 has 8 divisors (see below), whose sum is σ = 138607680. Its totient is φ = 66993480.
The previous prime is 102222949. The next prime is 102223003. The reversal of 102222987 is 789222201.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 102222987 - 27 = 102222859 is a prime.
It is not an unprimeable number, because it can be changed into a prime (102222937) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288589 + ... + 288942.
It is an arithmetic number, because the mean of its divisors is an integer number (17325960).
Almost surely, 2102222987 is an apocalyptic number.
102222987 is a deficient number, since it is larger than the sum of its proper divisors (36384693).
102222987 is an equidigital number, since it uses as much as digits as its factorization.
102222987 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 577593.
The product of its (nonzero) digits is 8064, while the sum is 33.
The square root of 102222987 is about 10110.5384129630. The cubic root of 102222987 is about 467.5731049469.
The spelling of 102222987 in words is "one hundred two million, two hundred twenty-two thousand, nine hundred eighty-seven".
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