Base | Representation |
---|---|
bin | 1111000001001101… |
… | …10110111111001101 |
3 | 202210221102120010000 |
4 | 13200212312333031 |
5 | 113003143003011 |
6 | 3412035234513 |
7 | 403546332414 |
oct | 74046667715 |
9 | 22727376100 |
10 | 8063250381 |
11 | 346854939a |
12 | 1690448a39 |
13 | 9b668a694 |
14 | 566c5047b |
15 | 322d41356 |
hex | 1e09b6fcd |
8063250381 has 40 divisors (see below), whose sum is σ = 13088134400. Its totient is φ = 4928273280.
The previous prime is 8063250373. The next prime is 8063250389. The reversal of 8063250381 is 1830523608.
It is an interprime number because it is at equal distance from previous prime (8063250373) and next prime (8063250389).
It is not a de Polignac number, because 8063250381 - 23 = 8063250373 is a prime.
It is a super-2 number, since 2×80632503812 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8063250389) by changing a digit.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 36796 + ... + 132213.
It is an arithmetic number, because the mean of its divisors is an integer number (327203360).
Almost surely, 28063250381 is an apocalyptic number.
8063250381 is a gapful number since it is divisible by the number (81) formed by its first and last digit.
It is an amenable number.
8063250381 is a deficient number, since it is larger than the sum of its proper divisors (5024884019).
8063250381 is a wasteful number, since it uses less digits than its factorization.
8063250381 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 169071 (or 169062 counting only the distinct ones).
The product of its (nonzero) digits is 34560, while the sum is 36.
The square root of 8063250381 is about 89795.6033500527. The cubic root of 8063250381 is about 2005.2570347689.
Adding to 8063250381 its reverse (1830523608), we get a palindrome (9893773989).
The spelling of 8063250381 in words is "eight billion, sixty-three million, two hundred fifty thousand, three hundred eighty-one".
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