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72207 = 3271113
BaseRepresentation
bin10001101000001111
310200001100
4101220033
54302312
61314143
7420342
oct215017
9120040
1072207
114a283
1235953
1326b35
141c459
15165dc
hex11a0f

72207 has 12 divisors (see below), whose sum is σ = 106704. Its totient is φ = 47040.

The previous prime is 72173. The next prime is 72211. The reversal of 72207 is 70227.

72207 is nontrivially palindromic in base 12.

It is not a de Polignac number, because 72207 - 212 = 68111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72227) 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, 583 + ... + 695.

It is an arithmetic number, because the mean of its divisors is an integer number (8892).

272207 is an apocalyptic number.

72207 is a deficient number, since it is larger than the sum of its proper divisors (34497).

72207 is a wasteful number, since it uses less digits than its factorization.

72207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 18.

The square root of 72207 is about 268.7136021864. The cubic root of 72207 is about 41.6415065881.

It can be divided in two parts, 7220 and 7, that added together give a palindrome (7227).

The spelling of 72207 in words is "seventy-two thousand, two hundred seven", and thus it is an iban number.

Divisors: 1 3 9 71 113 213 339 639 1017 8023 24069 72207