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64828371 = 324478831
BaseRepresentation
bin1111011101001…
…1001111010011
311111222121210210
43313103033103
5113044001441
610233255203
71415013666
oct367231723
9144877723
1064828371
1133659573
1219864503
131057a8aa
1488776dd
155a58616
hex3dd33d3

64828371 has 8 divisors (see below), whose sum is σ = 86482944. Its totient is φ = 43196360.

The previous prime is 64828343. The next prime is 64828417. The reversal of 64828371 is 17382846.

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 64828371 - 27 = 64828243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64828321) 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, 2926 + ... + 11756.

It is an arithmetic number, because the mean of its divisors is an integer number (10810368).

Almost surely, 264828371 is an apocalyptic number.

64828371 is a deficient number, since it is larger than the sum of its proper divisors (21654573).

64828371 is a wasteful number, since it uses less digits than its factorization.

64828371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11281.

The product of its digits is 64512, while the sum is 39.

The square root of 64828371 is about 8051.6067340625. The cubic root of 64828371 is about 401.7183802688.

The spelling of 64828371 in words is "sixty-four million, eight hundred twenty-eight thousand, three hundred seventy-one".

Divisors: 1 3 2447 7341 8831 26493 21609457 64828371