Base | Representation |
---|---|
bin | 111111000010011… |
… | …1111110011011010 |
3 | 12110102012021121000 |
4 | 1332010333303122 |
5 | 13313000123010 |
6 | 545520525430 |
7 | 103263143634 |
oct | 17604776332 |
9 | 5412167530 |
10 | 2115239130 |
11 | 995aa7514 |
12 | 4b0480876 |
13 | 2792c52b4 |
14 | 160cd5a54 |
15 | c5a777c0 |
hex | 7e13fcda |
2115239130 has 128 divisors (see below), whose sum is σ = 5736821760. Its totient is φ = 554541120.
The previous prime is 2115239117. The next prime is 2115239143. The reversal of 2115239130 is 319325112.
2115239130 is a `hidden beast` number, since 2 + 1 + 1 + 523 + 9 + 130 = 666.
It is an interprime number because it is at equal distance from previous prime (2115239117) and next prime (2115239143).
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a junction number, because it is equal to n+sod(n) for n = 2115239094 and 2115239103.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6095617 + ... + 6095963.
It is an arithmetic number, because the mean of its divisors is an integer number (44818920).
Almost surely, 22115239130 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2115239130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2868410880).
2115239130 is an abundant number, since it is smaller than the sum of its proper divisors (3621582630).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2115239130 is a wasteful number, since it uses less digits than its factorization.
2115239130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 681 (or 675 counting only the distinct ones).
The product of its (nonzero) digits is 1620, while the sum is 27.
The square root of 2115239130 is about 45991.7289303196. The cubic root of 2115239130 is about 1283.6693073612.
The spelling of 2115239130 in words is "two billion, one hundred fifteen million, two hundred thirty-nine thousand, one hundred thirty".
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