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72226 = 2721167
BaseRepresentation
bin10001101000100010
310200002001
4101220202
54302401
61314214
7420400
oct215042
9120061
1072226
114a2a0
123596a
1326b4b
141c470
1516601
hex11a22

72226 has 24 divisors (see below), whose sum is σ = 139536. Its totient is φ = 27720.

The previous prime is 72223. The next prime is 72227. The reversal of 72226 is 62227.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (72221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1045 + ... + 1111.

It is an arithmetic number, because the mean of its divisors is an integer number (5814).

272226 is an apocalyptic number.

72226 is a deficient number, since it is larger than the sum of its proper divisors (67310).

72226 is a wasteful number, since it uses less digits than its factorization.

72226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 87 counting only the distinct ones).

The product of its digits is 336, while the sum is 19.

The square root of 72226 is about 268.7489534863. The cubic root of 72226 is about 41.6451586774.

Subtracting from 72226 its reverse (62227), we obtain a palindrome (9999).

The spelling of 72226 in words is "seventy-two thousand, two hundred twenty-six".

Divisors: 1 2 7 11 14 22 49 67 77 98 134 154 469 539 737 938 1078 1474 3283 5159 6566 10318 36113 72226