Base | Representation |
---|---|
bin | 100100001101101111… |
… | …100110011110101101 |
3 | 10201100222112021220102 |
4 | 210031233212132231 |
5 | 1114114113202403 |
6 | 25510314400445 |
7 | 2544420331106 |
oct | 441557463655 |
9 | 121328467812 |
10 | 38885287853 |
11 | 15544805335 |
12 | 7652730125 |
13 | 3889150289 |
14 | 1c4c51d3ad |
15 | 1028be6b88 |
hex | 90dbe67ad |
38885287853 has 2 divisors, whose sum is σ = 38885287854. Its totient is φ = 38885287852.
The previous prime is 38885287829. The next prime is 38885287871. The reversal of 38885287853 is 35878258883.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 38485807684 + 399480169 = 196178^2 + 19987^2 .
It is a cyclic number.
It is not a de Polignac number, because 38885287853 - 212 = 38885283757 is a prime.
It is a super-2 number, since 2×388852878532 (a number of 22 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 38885287853.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (38885287823) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19442643926 + 19442643927.
It is an arithmetic number, because the mean of its divisors is an integer number (19442643927).
Almost surely, 238885287853 is an apocalyptic number.
It is an amenable number.
38885287853 is a deficient number, since it is larger than the sum of its proper divisors (1).
38885287853 is an equidigital number, since it uses as much as digits as its factorization.
38885287853 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 103219200, while the sum is 65.
The spelling of 38885287853 in words is "thirty-eight billion, eight hundred eighty-five million, two hundred eighty-seven thousand, eight hundred fifty-three".
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