Base | Representation |
---|---|
bin | 1001001110001… |
… | …1100010001011 |
3 | 2200210011222002 |
4 | 2103203202023 |
5 | 34400240330 |
6 | 3501021215 |
7 | 646531523 |
oct | 223434213 |
9 | 80704862 |
10 | 38680715 |
11 | 1a91a437 |
12 | 10b5480b |
13 | 80241c8 |
14 | 51cc683 |
15 | 35e0e45 |
hex | 24e388b |
38680715 has 16 divisors (see below), whose sum is σ = 48239616. Its totient is φ = 29743200.
The previous prime is 38680711. The next prime is 38680757. The reversal of 38680715 is 51708683.
It is not a de Polignac number, because 38680715 - 22 = 38680711 is a prime.
It is a super-2 number, since 2×386807152 = 2992395425822450, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (38680711) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24500 + ... + 26030.
It is an arithmetic number, because the mean of its divisors is an integer number (3014976).
Almost surely, 238680715 is an apocalyptic number.
38680715 is a deficient number, since it is larger than the sum of its proper divisors (9558901).
38680715 is a wasteful number, since it uses less digits than its factorization.
38680715 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1730.
The product of its (nonzero) digits is 40320, while the sum is 38.
The square root of 38680715 is about 6219.3822040457. The cubic root of 38680715 is about 338.1931688788.
The spelling of 38680715 in words is "thirty-eight million, six hundred eighty thousand, seven hundred fifteen".
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