Base | Representation |
---|---|
bin | 111111011111001… |
… | …1111001111110000 |
3 | 12111110112222010010 |
4 | 1332332133033300 |
5 | 13330324411003 |
6 | 551215534520 |
7 | 103535223462 |
oct | 17676371760 |
9 | 5443488103 |
10 | 2130310128 |
11 | 9a3560591 |
12 | 4b552a440 |
13 | 27c47104b |
14 | 162cda132 |
15 | c7053003 |
hex | 7ef9f3f0 |
2130310128 has 80 divisors (see below), whose sum is σ = 5710991616. Its totient is φ = 683773440.
The previous prime is 2130310123. The next prime is 2130310181. The reversal of 2130310128 is 8210130312.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2130310123) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139276 + ... + 153812.
Almost surely, 22130310128 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2130310128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2855495808).
2130310128 is an abundant number, since it is smaller than the sum of its proper divisors (3580681488).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2130310128 is a wasteful number, since it uses less digits than its factorization.
2130310128 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14662 (or 14656 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 21.
The square root of 2130310128 is about 46155.2827745644. The cubic root of 2130310128 is about 1286.7107935266.
The spelling of 2130310128 in words is "two billion, one hundred thirty million, three hundred ten thousand, one hundred twenty-eight".
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