Base | Representation |
---|---|
bin | 1000011111010… |
… | …10010111110100 |
3 | 11222000002001001 |
4 | 10033222113310 |
5 | 121212331310 |
6 | 11022213044 |
7 | 1523212453 |
oct | 417522764 |
9 | 158002031 |
10 | 71214580 |
11 | 37220628 |
12 | 1ba24184 |
13 | 119a5608 |
14 | 965ab9a |
15 | 63ba93a |
hex | 43ea5f4 |
71214580 has 24 divisors (see below), whose sum is σ = 149909760. Its totient is φ = 28417440.
The previous prime is 71214571. The next prime is 71214589. The reversal of 71214580 is 8541217.
It is an interprime number because it is at equal distance from previous prime (71214571) and next prime (71214589).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (71214589) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4725 + ... + 12835.
It is an arithmetic number, because the mean of its divisors is an integer number (6246240).
Almost surely, 271214580 is an apocalyptic number.
It is an amenable number.
71214580 is an abundant number, since it is smaller than the sum of its proper divisors (78695180).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
71214580 is a wasteful number, since it uses less digits than its factorization.
71214580 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8559 (or 8557 counting only the distinct ones).
The product of its (nonzero) digits is 2240, while the sum is 28.
The square root of 71214580 is about 8438.8731475239. The cubic root of 71214580 is about 414.4985087662.
Adding to 71214580 its reverse (8541217), we get a palindrome (79755797).
The spelling of 71214580 in words is "seventy-one million, two hundred fourteen thousand, five hundred eighty".
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