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83380417 = 194388443
BaseRepresentation
bin1001111100001…
…00100011000001
312210220011102121
410332010203001
5132321133132
612135044241
72031502411
oct476044301
9183804377
1083380417
114307aa3a
1223b10681
1314374c33
14b106641
1574c0497
hex4f848c1

83380417 has 4 divisors (see below), whose sum is σ = 87768880. Its totient is φ = 78991956.

The previous prime is 83380411. The next prime is 83380433. The reversal of 83380417 is 71408338.

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, and also an emirpimes, since its reverse is a distinct semiprime: 71408338 = 235704169.

It is a cyclic number.

It is not a de Polignac number, because 83380417 - 211 = 83378369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83380411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2194203 + ... + 2194240.

It is an arithmetic number, because the mean of its divisors is an integer number (21942220).

Almost surely, 283380417 is an apocalyptic number.

It is an amenable number.

83380417 is a deficient number, since it is larger than the sum of its proper divisors (4388463).

83380417 is a wasteful number, since it uses less digits than its factorization.

83380417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4388462.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 83380417 is about 9131.2878062188. The cubic root of 83380417 is about 436.8724796229.

The spelling of 83380417 in words is "eighty-three million, three hundred eighty thousand, four hundred seventeen".

Divisors: 1 19 4388443 83380417