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83028247 = 2912232341
BaseRepresentation
bin1001111001011…
…10100100010111
312210020021100021
410330232210113
5132223400442
612123330011
72025504601
oct474564427
9183207307
1083028247
114295a395
1223980907
1314280853
14b054171
157450e67
hex4f2e917

83028247 has 8 divisors (see below), whose sum is σ = 85998240. Its totient is φ = 80065440.

The previous prime is 83028241. The next prime is 83028251. The reversal of 83028247 is 74282038.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-83028247 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 (83028241) 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, 34297 + ... + 36637.

It is an arithmetic number, because the mean of its divisors is an integer number (10749780).

Almost surely, 283028247 is an apocalyptic number.

83028247 is a deficient number, since it is larger than the sum of its proper divisors (2969993).

83028247 is a wasteful number, since it uses less digits than its factorization.

83028247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3593.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 83028247 is about 9111.9837027949. The cubic root of 83028247 is about 436.2565456335.

The spelling of 83028247 in words is "eighty-three million, twenty-eight thousand, two hundred forty-seven".

Divisors: 1 29 1223 2341 35467 67889 2863043 83028247