Base | Representation |
---|---|
bin | 1001001111111… |
… | …0011010000111 |
3 | 2200222202221222 |
4 | 2103332122013 |
5 | 34412301131 |
6 | 3503230555 |
7 | 650500454 |
oct | 223763207 |
9 | 80882858 |
10 | 38790791 |
11 | 1a995106 |
12 | 10ba845b |
13 | 8062340 |
14 | 521a82b |
15 | 361387b |
hex | 24fe687 |
38790791 has 8 divisors (see below), whose sum is σ = 41825280. Its totient is φ = 35763552.
The previous prime is 38790781. The next prime is 38790793. The reversal of 38790791 is 19709783.
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-38790791 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38790793) 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, 15461 + ... + 17793.
It is an arithmetic number, because the mean of its divisors is an integer number (5228160).
Almost surely, 238790791 is an apocalyptic number.
38790791 is a deficient number, since it is larger than the sum of its proper divisors (3034489).
38790791 is a wasteful number, since it uses less digits than its factorization.
38790791 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3625.
The product of its (nonzero) digits is 95256, while the sum is 44.
The square root of 38790791 is about 6228.2253491665. The cubic root of 38790791 is about 338.5136704862.
The spelling of 38790791 in words is "thirty-eight million, seven hundred ninety thousand, seven hundred ninety-one".
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