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83997193 = 727134423
BaseRepresentation
bin1010000000110…
…11001000001001
312212001111111011
411000123020021
5133000402233
612200203521
72036651530
oct500331011
9185044434
1083997193
1143461375
12241695a1
131452c8a7
14b227317
1575930cd
hex501b209

83997193 has 8 divisors (see below), whose sum is σ = 96053888. Its totient is φ = 71954784.

The previous prime is 83997191. The next prime is 83997211. The reversal of 83997193 is 39179938.

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

It is a cyclic number.

It is not a de Polignac number, because 83997193 - 21 = 83997191 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83997191) 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, 16780 + ... + 21202.

It is an arithmetic number, because the mean of its divisors is an integer number (12006736).

Almost surely, 283997193 is an apocalyptic number.

It is an amenable number.

83997193 is a deficient number, since it is larger than the sum of its proper divisors (12056695).

83997193 is a wasteful number, since it uses less digits than its factorization.

83997193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7143.

The product of its digits is 367416, while the sum is 49.

The square root of 83997193 is about 9164.9982542279. The cubic root of 83997193 is about 437.9470356367.

The spelling of 83997193 in words is "eighty-three million, nine hundred ninety-seven thousand, one hundred ninety-three".

Divisors: 1 7 2713 4423 18991 30961 11999599 83997193