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71226 = 2331319
BaseRepresentation
bin10001011000111010
310121201000
4101120322
54234401
61305430
7414441
oct213072
9117630
1071226
1149571
1235276
132655c
141bd58
1516186
hex1163a

71226 has 16 divisors (see below), whose sum is σ = 158400. Its totient is φ = 23724.

The previous prime is 71209. The next prime is 71233. The reversal of 71226 is 62217.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 71199 and 71208.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 71226.

It is an unprimeable number.

71226 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 606 + ... + 713.

It is an arithmetic number, because the mean of its divisors is an integer number (9900).

271226 is an apocalyptic number.

71226 is an abundant number, since it is smaller than the sum of its proper divisors (87174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79200).

71226 is a wasteful number, since it uses less digits than its factorization.

71226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330 (or 1324 counting only the distinct ones).

The product of its digits is 168, while the sum is 18.

The square root of 71226 is about 266.8819963954. The cubic root of 71226 is about 41.4520663967.

Subtracting from 71226 its reverse (62217), we obtain a palindrome (9009).

The spelling of 71226 in words is "seventy-one thousand, two hundred twenty-six".

Divisors: 1 2 3 6 9 18 27 54 1319 2638 3957 7914 11871 23742 35613 71226