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72022 = 236011
BaseRepresentation
bin10001100101010110
310122210111
4101211112
54301042
61313234
7416656
oct214526
9118714
1072022
114a125
123581a
1326a22
141c366
1516517
hex11956

72022 has 4 divisors (see below), whose sum is σ = 108036. Its totient is φ = 36010.

The previous prime is 72019. The next prime is 72031. The reversal of 72022 is 22027.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 71993 and 72011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18004 + ... + 18007.

It is an arithmetic number, because the mean of its divisors is an integer number (27009).

272022 is an apocalyptic number.

72022 is a deficient number, since it is larger than the sum of its proper divisors (36014).

72022 is a wasteful number, since it uses less digits than its factorization.

72022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36013.

The product of its (nonzero) digits is 56, while the sum is 13.

The square root of 72022 is about 268.3691487485. The cubic root of 72022 is about 41.6059132373.

Adding to 72022 its reverse (22027), we get a palindrome (94049).

The spelling of 72022 in words is "seventy-two thousand, twenty-two", and thus it is an iban number.

Divisors: 1 2 36011 72022