Base | Representation |
---|---|
bin | 1011111001010111… |
… | …11110001100101111 |
3 | 121111010000120020011 |
4 | 11330223332030233 |
5 | 101040014302124 |
6 | 2533432434051 |
7 | 314162330305 |
oct | 57453761457 |
9 | 17433016204 |
10 | 6386869039 |
11 | 2788248271 |
12 | 12a2b48927 |
13 | 7aa290665 |
14 | 448356275 |
15 | 275aa5994 |
hex | 17cafe32f |
6386869039 has 4 divisors (see below), whose sum is σ = 6507376056. Its totient is φ = 6266362024.
The previous prime is 6386869033. The next prime is 6386869081. The reversal of 6386869039 is 9309686836.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 6386869039 - 213 = 6386860847 is a prime.
It is a super-2 number, since 2×63868690392 = 81584192242673567042, which 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 (6386869033) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60253429 + ... + 60253534.
It is an arithmetic number, because the mean of its divisors is an integer number (1626844014).
Almost surely, 26386869039 is an apocalyptic number.
6386869039 is a deficient number, since it is larger than the sum of its proper divisors (120507017).
6386869039 is a wasteful number, since it uses less digits than its factorization.
6386869039 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 120507016.
The product of its (nonzero) digits is 10077696, while the sum is 58.
The square root of 6386869039 is about 79917.8893552626. The cubic root of 6386869039 is about 1855.3649031851.
The spelling of 6386869039 in words is "six billion, three hundred eighty-six million, eight hundred sixty-nine thousand, thirty-nine".
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