Base | Representation |
---|---|
bin | 100011111111111101… |
… | …100001110110011101 |
3 | 10200202212102121000112 |
4 | 203333331201312131 |
5 | 1113130414323020 |
6 | 25431334335405 |
7 | 2535612033212 |
oct | 437775416635 |
9 | 120685377015 |
10 | 38654057885 |
11 | 15436231893 |
12 | 75a91ba565 |
13 | 3850280201 |
14 | 1c2992bb09 |
15 | 101376e2c5 |
hex | 8fff61d9d |
38654057885 has 4 divisors (see below), whose sum is σ = 46384869468. Its totient is φ = 30923246304.
The previous prime is 38654057837. The next prime is 38654057909. The reversal of 38654057885 is 58875045683.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58875045683 = 137 ⋅429744859.
It can be written as a sum of positive squares in 2 ways, for example, as 27234570841 + 11419487044 = 165029^2 + 106862^2 .
It is a cyclic number.
It is not a de Polignac number, because 38654057885 - 230 = 37580316061 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3865405784 + ... + 3865405793.
It is an arithmetic number, because the mean of its divisors is an integer number (11596217367).
Almost surely, 238654057885 is an apocalyptic number.
It is an amenable number.
38654057885 is a deficient number, since it is larger than the sum of its proper divisors (7730811583).
38654057885 is an equidigital number, since it uses as much as digits as its factorization.
38654057885 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7730811582.
The product of its (nonzero) digits is 32256000, while the sum is 59.
The spelling of 38654057885 in words is "thirty-eight billion, six hundred fifty-four million, fifty-seven thousand, eight hundred eighty-five".
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