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72268163 = 1165310061
BaseRepresentation
bin1000100111010…
…11100110000011
312000222121021122
410103223212003
5122000040123
611100542455
71535161232
oct423534603
9160877248
1072268163
1137880160
1220251a2b
1311c84036
149852b19
156527bc8
hex44eb983

72268163 has 8 divisors (see below), whose sum is σ = 78966576. Its totient is φ = 65591200.

The previous prime is 72268159. The next prime is 72268181. The reversal of 72268163 is 36186227.

It is a happy number.

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 72268163 - 22 = 72268159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72268123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2153 + ... + 12213.

It is an arithmetic number, because the mean of its divisors is an integer number (9870822).

Almost surely, 272268163 is an apocalyptic number.

72268163 is a deficient number, since it is larger than the sum of its proper divisors (6698413).

72268163 is a wasteful number, since it uses less digits than its factorization.

72268163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10725.

The product of its digits is 24192, while the sum is 35.

The square root of 72268163 is about 8501.0683446259. The cubic root of 72268163 is about 416.5326076100.

The spelling of 72268163 in words is "seventy-two million, two hundred sixty-eight thousand, one hundred sixty-three".

Divisors: 1 11 653 7183 10061 110671 6569833 72268163