Base | Representation |
---|---|
bin | 1000011110000… |
… | …11111000001100 |
3 | 11221201001202100 |
4 | 10033003320030 |
5 | 121142310113 |
6 | 11014555100 |
7 | 1521654666 |
oct | 417037014 |
9 | 157631670 |
10 | 71056908 |
11 | 3712311a |
12 | 1b968a90 |
13 | 1194b910 |
14 | 9619536 |
15 | 6388d73 |
hex | 43c3e0c |
71056908 has 72 divisors (see below), whose sum is σ = 194922000. Its totient is φ = 21695616.
The previous prime is 71056907. The next prime is 71056949. The reversal of 71056908 is 80965017.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is not an unprimeable number, because it can be changed into a prime (71056901) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69223 + ... + 70241.
It is an arithmetic number, because the mean of its divisors is an integer number (2707250).
Almost surely, 271056908 is an apocalyptic number.
71056908 is a gapful number since it is divisible by the number (78) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 71056908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97461000).
71056908 is an abundant number, since it is smaller than the sum of its proper divisors (123865092).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
71056908 is a wasteful number, since it uses less digits than its factorization.
71056908 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1191 (or 1186 counting only the distinct ones).
The product of its (nonzero) digits is 15120, while the sum is 36.
The square root of 71056908 is about 8429.5259653198. The cubic root of 71056908 is about 414.1923771611.
The spelling of 71056908 in words is "seventy-one million, fifty-six thousand, nine hundred eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.084 sec. • engine limits •