Base | Representation |
---|---|
bin | 1111111111000… |
… | …0011100010011 |
3 | 11200011020122022 |
4 | 3333300130103 |
5 | 114130421024 |
6 | 10353002055 |
7 | 1442605610 |
oct | 377603423 |
9 | 150136568 |
10 | 67045139 |
11 | 34933007 |
12 | 1a55332b |
13 | 10b758a5 |
14 | 8c93507 |
15 | 5d4535e |
hex | 3ff0713 |
67045139 has 16 divisors (see below), whose sum is σ = 77907648. Its totient is φ = 56512512.
The previous prime is 67045133. The next prime is 67045169. The reversal of 67045139 is 93154076.
It is not a de Polignac number, because 67045139 - 212 = 67041043 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 67045099 and 67045108.
It is not an unprimeable number, because it can be changed into a prime (67045133) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198779 + ... + 199115.
It is an arithmetic number, because the mean of its divisors is an integer number (4869228).
Almost surely, 267045139 is an apocalyptic number.
67045139 is a deficient number, since it is larger than the sum of its proper divisors (10862509).
67045139 is a wasteful number, since it uses less digits than its factorization.
67045139 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 734.
The product of its (nonzero) digits is 22680, while the sum is 35.
The square root of 67045139 is about 8188.1096108931. The cubic root of 67045139 is about 406.2460006233.
The spelling of 67045139 in words is "sixty-seven million, forty-five thousand, one hundred thirty-nine".
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