Base | Representation |
---|---|
bin | 100100010000011110… |
… | …101101101001000001 |
3 | 10201111011220111002021 |
4 | 210100132231221001 |
5 | 1114212341124020 |
6 | 25515034321441 |
7 | 2545515450421 |
oct | 442036555101 |
9 | 121434814067 |
10 | 38931192385 |
11 | 15568709068 |
12 | 7665b89281 |
13 | 3895803517 |
14 | 1c5466c481 |
15 | 102cc631aa |
hex | 9107ada41 |
38931192385 has 8 divisors (see below), whose sum is σ = 46794398976. Its totient is φ = 31093641840.
The previous prime is 38931192383. The next prime is 38931192449. The reversal of 38931192385 is 58329113983.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 38931192385 - 21 = 38931192383 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (38931192383) 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, 6410671 + ... + 6416740.
It is an arithmetic number, because the mean of its divisors is an integer number (5849299872).
Almost surely, 238931192385 is an apocalyptic number.
It is an amenable number.
38931192385 is a deficient number, since it is larger than the sum of its proper divisors (7863206591).
38931192385 is a wasteful number, since it uses less digits than its factorization.
38931192385 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12828023.
The product of its digits is 1399680, while the sum is 52.
The spelling of 38931192385 in words is "thirty-eight billion, nine hundred thirty-one million, one hundred ninety-two thousand, three hundred eighty-five".
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