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83247413 = 251331663
BaseRepresentation
bin1001111011001…
…00000100110101
312210122101222112
410331210010311
5132302404123
612132140405
72030406554
oct475440465
9183571875
1083247413
1142a9a017
1223a67705
1314329532
14b0add9b
157495d78
hex4f64135

83247413 has 4 divisors (see below), whose sum is σ = 83579328. Its totient is φ = 82915500.

The previous prime is 83247403. The next prime is 83247449. The reversal of 83247413 is 31474238.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 83247413 - 24 = 83247397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 83247413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83247403) 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 3 ways as a sum of consecutive naturals, for example, 165581 + ... + 166082.

It is an arithmetic number, because the mean of its divisors is an integer number (20894832).

Almost surely, 283247413 is an apocalyptic number.

It is an amenable number.

83247413 is a deficient number, since it is larger than the sum of its proper divisors (331915).

83247413 is a wasteful number, since it uses less digits than its factorization.

83247413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331914.

The product of its digits is 16128, while the sum is 32.

The square root of 83247413 is about 9124.0020276192. The cubic root of 83247413 is about 436.6400640968.

The spelling of 83247413 in words is "eighty-three million, two hundred forty-seven thousand, four hundred thirteen".

Divisors: 1 251 331663 83247413