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72441 = 332683
BaseRepresentation
bin10001101011111001
310200101000
4101223321
54304231
61315213
7421125
oct215371
9120330
1072441
114a476
1235b09
1326c85
141c585
15166e6
hex11af9

72441 has 8 divisors (see below), whose sum is σ = 107360. Its totient is φ = 48276.

The previous prime is 72431. The next prime is 72461. The reversal of 72441 is 14427.

It is a happy number.

It is not a de Polignac number, because 72441 - 27 = 72313 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72421) 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, 1315 + ... + 1368.

It is an arithmetic number, because the mean of its divisors is an integer number (13420).

272441 is an apocalyptic number.

It is an amenable number.

72441 is a deficient number, since it is larger than the sum of its proper divisors (34919).

72441 is a wasteful number, since it uses less digits than its factorization.

72441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2692 (or 2686 counting only the distinct ones).

The product of its digits is 224, while the sum is 18.

The square root of 72441 is about 269.1486578083. The cubic root of 72441 is about 41.6864403923.

Adding to 72441 its reverse (14427), we get a palindrome (86868).

The spelling of 72441 in words is "seventy-two thousand, four hundred forty-one", and thus it is an iban number.

Divisors: 1 3 9 27 2683 8049 24147 72441