Base | Representation |
---|---|
bin | 1111001010001… |
… | …10101001001001 |
3 | 22212021202101201 |
4 | 13211012221021 |
5 | 230023321144 |
6 | 20341344201 |
7 | 3102621262 |
oct | 745065111 |
9 | 285252351 |
10 | 127167049 |
11 | 65867539 |
12 | 36708061 |
13 | 20466199 |
14 | 12c63969 |
15 | b26e1d4 |
hex | 7946a49 |
127167049 has 4 divisors (see below), whose sum is σ = 127206036. Its totient is φ = 127128064.
The previous prime is 127167041. The next prime is 127167067. The reversal of 127167049 is 940761721.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 940761721 = 16063 ⋅58567.
It can be written as a sum of positive squares in 2 ways, for example, as 95413824 + 31753225 = 9768^2 + 5635^2 .
It is a cyclic number.
It is not a de Polignac number, because 127167049 - 23 = 127167041 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 127166999 and 127167017.
It is not an unprimeable number, because it can be changed into a prime (127167041) 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, 14104 + ... + 21289.
It is an arithmetic number, because the mean of its divisors is an integer number (31801509).
Almost surely, 2127167049 is an apocalyptic number.
It is an amenable number.
127167049 is a deficient number, since it is larger than the sum of its proper divisors (38987).
127167049 is an equidigital number, since it uses as much as digits as its factorization.
127167049 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 38986.
The product of its (nonzero) digits is 21168, while the sum is 37.
The square root of 127167049 is about 11276.8368348575. The cubic root of 127167049 is about 502.8728603987.
The spelling of 127167049 in words is "one hundred twenty-seven million, one hundred sixty-seven thousand, forty-nine".
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