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64200793 = 411565873
BaseRepresentation
bin1111010011101…
…0000001011001
311110210201221011
43310322001121
5112413411133
610212013521
71406461216
oct364720131
9143721834
1064200793
1133270008
12196012a1
13103bb047
148752b0d
1559826cd
hex3d3a059

64200793 has 4 divisors (see below), whose sum is σ = 65766708. Its totient is φ = 62634880.

The previous prime is 64200781. The next prime is 64200817. The reversal of 64200793 is 39700246.

64200793 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2782224 + 61418569 = 1668^2 + 7837^2 .

It is not a de Polignac number, because 64200793 - 217 = 64069721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64200733) 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 3 ways as a sum of consecutive naturals, for example, 782896 + ... + 782977.

It is an arithmetic number, because the mean of its divisors is an integer number (16441677).

Almost surely, 264200793 is an apocalyptic number.

It is an amenable number.

64200793 is a deficient number, since it is larger than the sum of its proper divisors (1565915).

64200793 is a wasteful number, since it uses less digits than its factorization.

64200793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565914.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 64200793 is about 8012.5397346909. The cubic root of 64200793 is about 400.4178820345.

The spelling of 64200793 in words is "sixty-four million, two hundred thousand, seven hundred ninety-three".

Divisors: 1 41 1565873 64200793