Base | Representation |
---|---|
bin | 10001101011010001110001… |
… | …10110010010001111001001 |
3 | 12002121222022112212212211101 |
4 | 20311220320312102033021 |
5 | 20043323043343031434 |
6 | 214400452510501401 |
7 | 11121202640450101 |
oct | 1065507066221711 |
9 | 162558275785741 |
10 | 38870407783369 |
11 | 114269359317a8 |
12 | 4439418b04861 |
13 | 188c604a62646 |
14 | 9854a2bd6201 |
15 | 476196341b14 |
hex | 235a38d923c9 |
38870407783369 has 2 divisors, whose sum is σ = 38870407783370. Its totient is φ = 38870407783368.
The previous prime is 38870407783351. The next prime is 38870407783393. The reversal of 38870407783369 is 96338770407883.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 22447554273225 + 16422853510144 = 4737885^2 + 4052512^2 .
It is an emirp because it is prime and its reverse (96338770407883) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 38870407783369 - 225 = 38870374228937 is a prime.
It is a super-2 number, since 2×388704077833692 (a number of 28 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (38870404783369) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19435203891684 + 19435203891685.
It is an arithmetic number, because the mean of its divisors is an integer number (19435203891685).
Almost surely, 238870407783369 is an apocalyptic number.
It is an amenable number.
38870407783369 is a deficient number, since it is larger than the sum of its proper divisors (1).
38870407783369 is an equidigital number, since it uses as much as digits as its factorization.
38870407783369 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1024192512, while the sum is 73.
The spelling of 38870407783369 in words is "thirty-eight trillion, eight hundred seventy billion, four hundred seven million, seven hundred eighty-three thousand, three hundred sixty-nine".
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