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BaseRepresentation
bin10001101001100101
310200011112
4101221211
54303133
61314405
7420524
oct215145
9120145
1072293
114a351
1235a05
1326ba0
141c4bb
1516648
hex11a65

72293 has 8 divisors (see below), whose sum is σ = 79968. Its totient is φ = 64944.

The previous prime is 72287. The next prime is 72307. The reversal of 72293 is 39227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72293 - 24 = 72277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72223) 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, 830 + ... + 912.

It is an arithmetic number, because the mean of its divisors is an integer number (9996).

272293 is an apocalyptic number.

It is an amenable number.

72293 is a deficient number, since it is larger than the sum of its proper divisors (7675).

72293 is a wasteful number, since it uses less digits than its factorization.

72293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163.

The product of its digits is 756, while the sum is 23.

The square root of 72293 is about 268.8735762398. The cubic root of 72293 is about 41.6580319885.

The spelling of 72293 in words is "seventy-two thousand, two hundred ninety-three".

Divisors: 1 13 67 83 871 1079 5561 72293