Base | Representation |
---|---|
bin | 1001001011011… |
… | …0010110101001 |
3 | 2200102210010002 |
4 | 2102312112221 |
5 | 34323330112 |
6 | 3453032345 |
7 | 645131144 |
oct | 222662651 |
9 | 80383102 |
10 | 38495657 |
11 | 1a8033a2 |
12 | 10a856b5 |
13 | 7c8abc5 |
14 | 518105b |
15 | 35a61c2 |
hex | 24b65a9 |
38495657 has 4 divisors (see below), whose sum is σ = 38516880. Its totient is φ = 38474436.
The previous prime is 38495647. The next prime is 38495659. The reversal of 38495657 is 75659483.
38495657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75659483 = 137 ⋅552259.
It is a cyclic number.
It is not a de Polignac number, because 38495657 - 26 = 38495593 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (38495659) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7607 + ... + 11612.
It is an arithmetic number, because the mean of its divisors is an integer number (9629220).
Almost surely, 238495657 is an apocalyptic number.
It is an amenable number.
38495657 is a deficient number, since it is larger than the sum of its proper divisors (21223).
38495657 is a wasteful number, since it uses less digits than its factorization.
38495657 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21222.
The product of its digits is 907200, while the sum is 47.
The square root of 38495657 is about 6204.4868442120. The cubic root of 38495657 is about 337.6529735433.
The spelling of 38495657 in words is "thirty-eight million, four hundred ninety-five thousand, six hundred fifty-seven".
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