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83320853 = 7111082089
BaseRepresentation
bin1001111011101…
…10000000010101
312210210010201112
410331312000111
5132312231403
612133504405
72031133640
oct475660025
9183703645
1083320853
114303a210
1223aa2105
1314353aa5
14b0cca57
1574ac9d8
hex4f76015

83320853 has 8 divisors (see below), whose sum is σ = 103880640. Its totient is φ = 64925280.

The previous prime is 83320849. The next prime is 83320879. The reversal of 83320853 is 35802338.

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

It is not a de Polignac number, because 83320853 - 22 = 83320849 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 (83320753) 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 7 ways as a sum of consecutive naturals, for example, 540968 + ... + 541121.

It is an arithmetic number, because the mean of its divisors is an integer number (12985080).

Almost surely, 283320853 is an apocalyptic number.

It is an amenable number.

83320853 is a deficient number, since it is larger than the sum of its proper divisors (20559787).

83320853 is a wasteful number, since it uses less digits than its factorization.

83320853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082107.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 83320853 is about 9128.0256901479. The cubic root of 83320853 is about 436.7684261287.

The spelling of 83320853 in words is "eighty-three million, three hundred twenty thousand, eight hundred fifty-three".

Divisors: 1 7 11 77 1082089 7574623 11902979 83320853