Base | Representation |
---|---|
bin | 111111110111001… |
… | …1011110100110110 |
3 | 12112100012112102000 |
4 | 1333232123310312 |
5 | 13342034112110 |
6 | 552345200130 |
7 | 104050112505 |
oct | 17756336466 |
9 | 5470175360 |
10 | 2142879030 |
11 | 9aa665806 |
12 | 4b9790046 |
13 | 281c51c76 |
14 | 16484c83c |
15 | c81d71c0 |
hex | 7fb9bd36 |
2142879030 has 64 divisors (see below), whose sum is σ = 5898700800. Its totient is φ = 552998880.
The previous prime is 2142878963. The next prime is 2142879031. The reversal of 2142879030 is 309782412.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2142879031) 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, 119640 + ... + 136379.
It is an arithmetic number, because the mean of its divisors is an integer number (92167200).
Almost surely, 22142879030 is an apocalyptic number.
2142879030 is an abundant number, since it is smaller than the sum of its proper divisors (3755821770).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2142879030 is a wasteful number, since it uses less digits than its factorization.
2142879030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 256066 (or 256060 counting only the distinct ones).
The product of its (nonzero) digits is 24192, while the sum is 36.
The square root of 2142879030 is about 46291.2413961864. The cubic root of 2142879030 is about 1289.2363787795.
The spelling of 2142879030 in words is "two billion, one hundred forty-two million, eight hundred seventy-nine thousand, thirty".
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