Base | Representation |
---|---|
bin | 111100100001100… |
… | …0011010001101111 |
3 | 12020112101111212002 |
4 | 1321003003101233 |
5 | 13124343433431 |
6 | 533304002515 |
7 | 101216611022 |
oct | 17103032157 |
9 | 5215344762 |
10 | 2030842991 |
11 | 9523a3441 |
12 | 48816043b |
13 | 264985c58 |
14 | 153a071b9 |
15 | bd4563cb |
hex | 790c346f |
2030842991 has 8 divisors (see below), whose sum is σ = 2059644960. Its totient is φ = 2002067712.
The previous prime is 2030842909. The next prime is 2030842999. The reversal of 2030842991 is 1992480302.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 2030842991 - 218 = 2030580847 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2030842999) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185126 + ... + 195788.
It is an arithmetic number, because the mean of its divisors is an integer number (257455620).
Almost surely, 22030842991 is an apocalyptic number.
2030842991 is a deficient number, since it is larger than the sum of its proper divisors (28801969).
2030842991 is a wasteful number, since it uses less digits than its factorization.
2030842991 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13345.
The product of its (nonzero) digits is 31104, while the sum is 38.
The square root of 2030842991 is about 45064.8753576441. The cubic root of 2030842991 is about 1266.3646614334.
The spelling of 2030842991 in words is "two billion, thirty million, eight hundred forty-two thousand, nine hundred ninety-one".
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