Base | Representation |
---|---|
bin | 1001000110001… |
… | …1111001000110 |
3 | 2122210121210100 |
4 | 2101203321012 |
5 | 34232023034 |
6 | 3441504530 |
7 | 642223335 |
oct | 221437106 |
9 | 78717710 |
10 | 38157894 |
11 | 1a5a2655 |
12 | 10942146 |
13 | 7ba0248 |
14 | 50d3d1c |
15 | 353b099 |
hex | 2463e46 |
38157894 has 24 divisors (see below), whose sum is σ = 87539400. Its totient is φ = 11971008.
The previous prime is 38157893. The next prime is 38157913. The reversal of 38157894 is 49875183.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38157893) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62044 + ... + 62655.
It is an arithmetic number, because the mean of its divisors is an integer number (3647475).
Almost surely, 238157894 is an apocalyptic number.
38157894 is a gapful number since it is divisible by the number (34) formed by its first and last digit.
38157894 is an abundant number, since it is smaller than the sum of its proper divisors (49381506).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38157894 is a wasteful number, since it uses less digits than its factorization.
38157894 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 124724 (or 124721 counting only the distinct ones).
The product of its digits is 241920, while the sum is 45.
The square root of 38157894 is about 6177.2076215714. The cubic root of 38157894 is about 336.6625426196.
The spelling of 38157894 in words is "thirty-eight million, one hundred fifty-seven thousand, eight hundred ninety-four".
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