Base | Representation |
---|---|
bin | 1000100100010… |
… | …11101001000101 |
3 | 12000020122011021 |
4 | 10102023221011 |
5 | 121400001031 |
6 | 11044311141 |
7 | 1531633342 |
oct | 422135105 |
9 | 160218137 |
10 | 71875141 |
11 | 37631948 |
12 | 200a24b1 |
13 | 11b77190 |
14 | 978d7c9 |
15 | 649b511 |
hex | 448ba45 |
71875141 has 16 divisors (see below), whose sum is σ = 79213680. Its totient is φ = 64811520.
The previous prime is 71875103. The next prime is 71875163. The reversal of 71875141 is 14157817.
It can be written as a sum of positive squares in 8 ways, for example, as 36650916 + 35224225 = 6054^2 + 5935^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-71875141 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 71875097 and 71875106.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (71875171) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184575 + ... + 184963.
It is an arithmetic number, because the mean of its divisors is an integer number (4950855).
Almost surely, 271875141 is an apocalyptic number.
It is an amenable number.
71875141 is a deficient number, since it is larger than the sum of its proper divisors (7338539).
71875141 is a wasteful number, since it uses less digits than its factorization.
71875141 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 696.
The product of its digits is 7840, while the sum is 34.
The square root of 71875141 is about 8477.9207946288. The cubic root of 71875141 is about 415.7761465913.
The spelling of 71875141 in words is "seventy-one million, eight hundred seventy-five thousand, one hundred forty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •