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72086339 = 139835641
BaseRepresentation
bin1000100101111…
…11001101000011
312000122100212102
410102333031003
5121423230324
611053021015
71533503153
oct422771503
9160570772
1072086339
1137766596
122018476b
1311c1c350
149806763
1564dddae
hex44bf343

72086339 has 8 divisors (see below), whose sum is σ = 77724192. Its totient is φ = 66461760.

The previous prime is 72086321. The next prime is 72086369. The reversal of 72086339 is 93368027.

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 72086339 - 212 = 72082243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72086369) 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, 9959 + ... + 15599.

It is an arithmetic number, because the mean of its divisors is an integer number (9715524).

Almost surely, 272086339 is an apocalyptic number.

72086339 is a deficient number, since it is larger than the sum of its proper divisors (5637853).

72086339 is a wasteful number, since it uses less digits than its factorization.

72086339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6637.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 72086339 is about 8490.3674243227. The cubic root of 72086339 is about 416.1829874055.

The spelling of 72086339 in words is "seventy-two million, eighty-six thousand, three hundred thirty-nine".

Divisors: 1 13 983 5641 12779 73333 5545103 72086339