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84195073 = 281929867
BaseRepresentation
bin1010000010010…
…11011100000001
312212102112221001
411001023130001
5133023220243
612204332001
72041434454
oct501133401
9185375831
1084195073
1143587006
1224244001
131459b991
14b27949b
1575d1a4d
hex504b701

84195073 has 4 divisors (see below), whose sum is σ = 84227760. Its totient is φ = 84162388.

The previous prime is 84195071. The next prime is 84195077. The reversal of 84195073 is 37059148.

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 84195073 - 21 = 84195071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84195071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12115 + ... + 17752.

It is an arithmetic number, because the mean of its divisors is an integer number (21056940).

Almost surely, 284195073 is an apocalyptic number.

It is an amenable number.

84195073 is a deficient number, since it is larger than the sum of its proper divisors (32687).

84195073 is a wasteful number, since it uses less digits than its factorization.

84195073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32686.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 84195073 is about 9175.7873231674. The cubic root of 84195073 is about 438.2906701221.

The spelling of 84195073 in words is "eighty-four million, one hundred ninety-five thousand, seventy-three".

Divisors: 1 2819 29867 84195073