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83272243 = 383217421
BaseRepresentation
bin1001111011010…
…10001000110011
312210200200001011
410331222020303
5132304202433
612132451351
72030542135
oct475521063
9183620034
1083272243
114300673a
1223a79b57
1314337922
14b0b9055
15749d3cd
hex4f6a233

83272243 has 4 divisors (see below), whose sum is σ = 83490048. Its totient is φ = 83054440.

The previous prime is 83272229. The next prime is 83272261. The reversal of 83272243 is 34227238.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34227238 = 217113619.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-83272243 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83272283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108328 + ... + 109093.

It is an arithmetic number, because the mean of its divisors is an integer number (20872512).

Almost surely, 283272243 is an apocalyptic number.

83272243 is a deficient number, since it is larger than the sum of its proper divisors (217805).

83272243 is a wasteful number, since it uses less digits than its factorization.

83272243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217804.

The product of its digits is 16128, while the sum is 31.

The square root of 83272243 is about 9125.3626229318. The cubic root of 83272243 is about 436.6834716321.

The spelling of 83272243 in words is "eighty-three million, two hundred seventy-two thousand, two hundred forty-three".

Divisors: 1 383 217421 83272243