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83290039 = 711898577
BaseRepresentation
bin1001111011011…
…10011110110111
312210201120110021
410331232132313
5132310240124
612133110011
72030645050
oct475563667
9183646407
1083290039
1143019048
1223a88307
1314342a61
14b0c1727
1574a37e4
hex4f6e7b7

83290039 has 4 divisors (see below), whose sum is σ = 95188624. Its totient is φ = 71391456.

The previous prime is 83290037. The next prime is 83290043. The reversal of 83290039 is 93009238.

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

It is a cyclic number.

It is not a de Polignac number, because 83290039 - 21 = 83290037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83289986 and 83290013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83290033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5949282 + ... + 5949295.

It is an arithmetic number, because the mean of its divisors is an integer number (23797156).

Almost surely, 283290039 is an apocalyptic number.

83290039 is a deficient number, since it is larger than the sum of its proper divisors (11898585).

83290039 is a wasteful number, since it uses less digits than its factorization.

83290039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11898584.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 83290039 is about 9126.3376553796. The cubic root of 83290039 is about 436.7145770972.

The spelling of 83290039 in words is "eighty-three million, two hundred ninety thousand, thirty-nine".

Divisors: 1 7 11898577 83290039