Base | Representation |
---|---|
bin | 1001000100000… |
… | …1000010110101 |
3 | 2122112100222210 |
4 | 2101001002311 |
5 | 34212441112 |
6 | 3434444033 |
7 | 641060235 |
oct | 221010265 |
9 | 78470883 |
10 | 38015157 |
11 | 1a505394 |
12 | 10893619 |
13 | 7b5029b |
14 | 5097cc5 |
15 | 350db3c |
hex | 24410b5 |
38015157 has 4 divisors (see below), whose sum is σ = 50686880. Its totient is φ = 25343436.
The previous prime is 38015147. The next prime is 38015161. The reversal of 38015157 is 75151083.
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.
It is not a de Polignac number, because 38015157 - 24 = 38015141 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 (38015147) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6335857 + ... + 6335862.
It is an arithmetic number, because the mean of its divisors is an integer number (12671720).
Almost surely, 238015157 is an apocalyptic number.
It is an amenable number.
38015157 is a deficient number, since it is larger than the sum of its proper divisors (12671723).
38015157 is a wasteful number, since it uses less digits than its factorization.
38015157 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12671722.
The product of its (nonzero) digits is 4200, while the sum is 30.
The square root of 38015157 is about 6165.6432754417. The cubic root of 38015157 is about 336.2422342655.
The spelling of 38015157 in words is "thirty-eight million, fifteen thousand, one hundred fifty-seven".
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