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72079 = 721471
BaseRepresentation
bin10001100110001111
310122212121
4101212033
54301304
61313411
7420100
oct214617
9118777
1072079
114a177
1235867
1326a67
141c3a7
1516554
hex1198f

72079 has 6 divisors (see below), whose sum is σ = 83904. Its totient is φ = 61740.

The previous prime is 72077. The next prime is 72089. The reversal of 72079 is 97027.

It is not a de Polignac number, because 72079 - 21 = 72077 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 (72073) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 687 + ... + 784.

It is an arithmetic number, because the mean of its divisors is an integer number (13984).

272079 is an apocalyptic number.

72079 is a deficient number, since it is larger than the sum of its proper divisors (11825).

72079 is a wasteful number, since it uses less digits than its factorization.

72079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485 (or 1478 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 25.

The square root of 72079 is about 268.4753247507. The cubic root of 72079 is about 41.6168863275.

The spelling of 72079 in words is "seventy-two thousand, seventy-nine".

Divisors: 1 7 49 1471 10297 72079