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83039069 = 101822169
BaseRepresentation
bin1001111001100…
…01001101011101
312210020211012002
410330301031131
5132224222234
612123452045
72025551261
oct474611535
9183224162
1083039069
1142967533
1223987025
1314285759
14b0580a1
15745427e
hex4f3135d

83039069 has 4 divisors (see below), whose sum is σ = 83861340. Its totient is φ = 82216800.

The previous prime is 83039059. The next prime is 83039071. The reversal of 83039069 is 96093038.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 61042969 + 21996100 = 7813^2 + 4690^2 .

It is a cyclic number.

It is not a de Polignac number, because 83039069 - 24 = 83039053 is a prime.

It is a super-2 number, since 2×830390692 = 13790973960773522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83039059) 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, 410984 + ... + 411185.

It is an arithmetic number, because the mean of its divisors is an integer number (20965335).

Almost surely, 283039069 is an apocalyptic number.

It is an amenable number.

83039069 is a deficient number, since it is larger than the sum of its proper divisors (822271).

83039069 is a wasteful number, since it uses less digits than its factorization.

83039069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822270.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 83039069 is about 9112.5775168171. The cubic root of 83039069 is about 436.2754988749.

The spelling of 83039069 in words is "eighty-three million, thirty-nine thousand, sixty-nine".

Divisors: 1 101 822169 83039069