Base | Representation |
---|---|
bin | 1100001011001… |
… | …10010010101100 |
3 | 21010011210012110 |
4 | 12011212102230 |
5 | 202121141420 |
6 | 14045004020 |
7 | 2350045416 |
oct | 605462254 |
9 | 233153173 |
10 | 102130860 |
11 | 52717477 |
12 | 2a253610 |
13 | 1820b680 |
14 | d7c79b6 |
15 | 8e75ee0 |
hex | 61664ac |
102130860 has 96 divisors (see below), whose sum is σ = 310689792. Its totient is φ = 24917760.
The previous prime is 102130843. The next prime is 102130867. The reversal of 102130860 is 68031201.
It is not an unprimeable number, because it can be changed into a prime (102130867) 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, 98545 + ... + 99575.
It is an arithmetic number, because the mean of its divisors is an integer number (3236352).
Almost surely, 2102130860 is an apocalyptic number.
102130860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 102130860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155344896).
102130860 is an abundant number, since it is smaller than the sum of its proper divisors (208558932).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
102130860 is a wasteful number, since it uses less digits than its factorization.
102130860 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1183 (or 1181 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 21.
The square root of 102130860 is about 10105.9813971727. The cubic root of 102130860 is about 467.4325982117.
The spelling of 102130860 in words is "one hundred two million, one hundred thirty thousand, eight hundred sixty".
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