Base | Representation |
---|---|
bin | 100011011111011001… |
… | …100110000100101001 |
3 | 10122100210111010220210 |
4 | 203133121212010221 |
5 | 1111021042021311 |
6 | 25301221411333 |
7 | 2516226450516 |
oct | 433731460451 |
9 | 118323433823 |
10 | 38107767081 |
11 | 1518592848a |
12 | 7476269b49 |
13 | 379403b107 |
14 | 1bb716630d |
15 | ed08103a6 |
hex | 8df666129 |
38107767081 has 8 divisors (see below), whose sum is σ = 51568719904. Its totient is φ = 25025996160.
The previous prime is 38107767077. The next prime is 38107767091. The reversal of 38107767081 is 18076770183.
38107767081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 38107767081 - 22 = 38107767077 is a prime.
It is a super-2 number, since 2×381077670812 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 38107767081.
It is not an unprimeable number, because it can be changed into a prime (38107767091) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94795240 + ... + 94795641.
It is an arithmetic number, because the mean of its divisors is an integer number (6446089988).
Almost surely, 238107767081 is an apocalyptic number.
It is an amenable number.
38107767081 is a deficient number, since it is larger than the sum of its proper divisors (13460952823).
38107767081 is a wasteful number, since it uses less digits than its factorization.
38107767081 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 189590951.
The product of its (nonzero) digits is 395136, while the sum is 48.
The spelling of 38107767081 in words is "thirty-eight billion, one hundred seven million, seven hundred sixty-seven thousand, eighty-one".
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