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72084079 is a prime number
BaseRepresentation
bin1000100101111…
…10101001101111
312000122020202201
410102332221233
5121423142304
611053002331
71533463444
oct422765157
9160566681
1072084079
1137764921
12201833a7
1311c1b302
1498059cb
1564dd3a4
hex44bea6f

72084079 has 2 divisors, whose sum is σ = 72084080. Its totient is φ = 72084078.

The previous prime is 72084059. The next prime is 72084107. The reversal of 72084079 is 97048027.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (97048027) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72084079 - 27 = 72083951 is a prime.

It is a super-2 number, since 2×720840792 = 10392228890556482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72084059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36042039 + 36042040.

It is an arithmetic number, because the mean of its divisors is an integer number (36042040).

Almost surely, 272084079 is an apocalyptic number.

72084079 is a deficient number, since it is larger than the sum of its proper divisors (1).

72084079 is an equidigital number, since it uses as much as digits as its factorization.

72084079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 72084079 is about 8490.2343312773. The cubic root of 72084079 is about 416.1786380684.

The spelling of 72084079 in words is "seventy-two million, eighty-four thousand, seventy-nine".