Base | Representation |
---|---|
bin | 100011110100010010… |
… | …010101010111001001 |
3 | 10200021012212020011012 |
4 | 203310102111113021 |
5 | 1112230243411121 |
6 | 25400100213305 |
7 | 2531013115544 |
oct | 436422252711 |
9 | 120235766135 |
10 | 38458185161 |
11 | 15345708800 |
12 | 755369a235 |
13 | 381b80c6a6 |
14 | 1c0b90185b |
15 | 100147cc5b |
hex | 8f44955c9 |
38458185161 has 12 divisors (see below), whose sum is σ = 44110145856. Its totient is φ = 33441897720.
The previous prime is 38458185151. The next prime is 38458185163. The reversal of 38458185161 is 16158185483.
It is a de Polignac number, because none of the positive numbers 2k-38458185161 is a prime.
It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (38458185163) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6906701 + ... + 6912266.
It is an arithmetic number, because the mean of its divisors is an integer number (3675845488).
Almost surely, 238458185161 is an apocalyptic number.
It is an amenable number.
38458185161 is a deficient number, since it is larger than the sum of its proper divisors (5651960695).
38458185161 is a wasteful number, since it uses less digits than its factorization.
38458185161 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13819012 (or 13819001 counting only the distinct ones).
The product of its digits is 921600, while the sum is 50.
The spelling of 38458185161 in words is "thirty-eight billion, four hundred fifty-eight million, one hundred eighty-five thousand, one hundred sixty-one".
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