Base | Representation |
---|---|
bin | 100011110101101011… |
… | …100100100001010101 |
3 | 10200022211212201012012 |
4 | 203311223210201111 |
5 | 1112302240444234 |
6 | 25402253434005 |
7 | 2531416005464 |
oct | 436553444125 |
9 | 120284781165 |
10 | 38481578069 |
11 | 15357936190 |
12 | 755b49b905 |
13 | 382361024c |
14 | 1c10a709db |
15 | 100354e0ce |
hex | 8f5ae4855 |
38481578069 has 8 divisors (see below), whose sum is σ = 41981833440. Its totient is φ = 34981644400.
The previous prime is 38481578039. The next prime is 38481578077. The reversal of 38481578069 is 96087518483.
It is a happy number.
38481578069 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 a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-38481578069 is a prime.
It is a super-2 number, since 2×384815780692 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 38481577999 and 38481578017.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38481578039) 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, 217787 + ... + 352695.
It is an arithmetic number, because the mean of its divisors is an integer number (5247729180).
Almost surely, 238481578069 is an apocalyptic number.
It is an amenable number.
38481578069 is a deficient number, since it is larger than the sum of its proper divisors (3500255371).
38481578069 is a wasteful number, since it uses less digits than its factorization.
38481578069 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 160851.
The product of its (nonzero) digits is 11612160, while the sum is 59.
The spelling of 38481578069 in words is "thirty-eight billion, four hundred eighty-one million, five hundred seventy-eight thousand, sixty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.082 sec. • engine limits •