Base | Representation |
---|---|
bin | 111100011111111… |
… | …1110111101101010 |
3 | 12020110212122211120 |
4 | 1320333332331222 |
5 | 13124142221030 |
6 | 533234440110 |
7 | 101210021505 |
oct | 17077767552 |
9 | 5213778746 |
10 | 2030038890 |
11 | 9519a42a0 |
12 | 487a33036 |
13 | 264763c59 |
14 | 15387813c |
15 | bd348010 |
hex | 78ffef6a |
2030038890 has 64 divisors (see below), whose sum is σ = 5363867520. Its totient is φ = 487607040.
The previous prime is 2030038873. The next prime is 2030038891. The reversal of 2030038890 is 988300302.
It is a Harshad number since it is a multiple of its sum of digits (33).
It is not an unprimeable number, because it can be changed into a prime (2030038891) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7752 + ... + 64188.
It is an arithmetic number, because the mean of its divisors is an integer number (83810430).
Almost surely, 22030038890 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2030038890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2681933760).
2030038890 is an abundant number, since it is smaller than the sum of its proper divisors (3333828630).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2030038890 is a wasteful number, since it uses less digits than its factorization.
2030038890 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 56567.
The product of its (nonzero) digits is 10368, while the sum is 33.
The square root of 2030038890 is about 45055.9528808347. The cubic root of 2030038890 is about 1266.1975026855.
The spelling of 2030038890 in words is "two billion, thirty million, thirty-eight thousand, eight hundred ninety".
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