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83412971 = 3110126641
BaseRepresentation
bin1001111100011…
…00011111101011
312210221211002022
410332030133223
5132323203341
612135455055
72031666335
oct476143753
9183854068
1083412971
11430a2444
1223b2748b
13143869b5
14b114455
1574c9e4b
hex4f8c7eb

83412971 has 8 divisors (see below), whose sum is σ = 86959488. Its totient is φ = 79920000.

The previous prime is 83412949. The next prime is 83413007. The reversal of 83412971 is 17921438.

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 83412971 - 226 = 16304107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83412941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10190 + ... + 16451.

It is an arithmetic number, because the mean of its divisors is an integer number (10869936).

Almost surely, 283412971 is an apocalyptic number.

83412971 is a deficient number, since it is larger than the sum of its proper divisors (3546517).

83412971 is a wasteful number, since it uses less digits than its factorization.

83412971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26773.

The product of its digits is 12096, while the sum is 35.

The square root of 83412971 is about 9133.0701847736. The cubic root of 83412971 is about 436.9293278883.

The spelling of 83412971 in words is "eighty-three million, four hundred twelve thousand, nine hundred seventy-one".

Divisors: 1 31 101 3131 26641 825871 2690741 83412971