Base | Representation |
---|---|
bin | 1000011110011… |
… | …00110111101101 |
3 | 11221202221021112 |
4 | 10033030313231 |
5 | 121144444431 |
6 | 11015441405 |
7 | 1522200245 |
oct | 417146755 |
9 | 157687245 |
10 | 71093741 |
11 | 37148864 |
12 | 1b986265 |
13 | 11962604 |
14 | 9628b25 |
15 | 6394c2b |
hex | 43ccded |
71093741 has 4 divisors (see below), whose sum is σ = 71358300. Its totient is φ = 70829184.
The previous prime is 71093717. The next prime is 71093753. The reversal of 71093741 is 14739017.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14739017 = 17 ⋅867001.
It can be written as a sum of positive squares in 2 ways, for example, as 1371241 + 69722500 = 1171^2 + 8350^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-71093741 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 71093698 and 71093707.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (71093441) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131876 + ... + 132413.
It is an arithmetic number, because the mean of its divisors is an integer number (17839575).
Almost surely, 271093741 is an apocalyptic number.
It is an amenable number.
71093741 is a deficient number, since it is larger than the sum of its proper divisors (264559).
71093741 is a wasteful number, since it uses less digits than its factorization.
71093741 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 264558.
The product of its (nonzero) digits is 5292, while the sum is 32.
The square root of 71093741 is about 8431.7104433205. The cubic root of 71093741 is about 414.2639316048.
The spelling of 71093741 in words is "seventy-one million, ninety-three thousand, seven hundred forty-one".
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