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64852513 = 118277129
BaseRepresentation
bin1111011101100…
…1001000100001
311112000211220221
43313121020201
5113100240023
610234003041
71415144245
oct367311041
9145024827
1064852513
1133675720
1219876481
131058888b
148882425
155a6085d
hex3dd9221

64852513 has 8 divisors (see below), whose sum is σ = 70843680. Its totient is φ = 58877280.

The previous prime is 64852511. The next prime is 64852547. The reversal of 64852513 is 31525846.

64852513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64852513 - 21 = 64852511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64852511) 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 7 ways as a sum of consecutive naturals, for example, 5533 + ... + 12661.

It is an arithmetic number, because the mean of its divisors is an integer number (8855460).

Almost surely, 264852513 is an apocalyptic number.

It is an amenable number.

64852513 is a deficient number, since it is larger than the sum of its proper divisors (5991167).

64852513 is a wasteful number, since it uses less digits than its factorization.

64852513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7967.

The product of its digits is 28800, while the sum is 34.

The square root of 64852513 is about 8053.1057983861. The cubic root of 64852513 is about 401.7682405453.

It can be divided in two parts, 6485 and 2513, that added together give a palindrome (8998).

The spelling of 64852513 in words is "sixty-four million, eight hundred fifty-two thousand, five hundred thirteen".

Divisors: 1 11 827 7129 9097 78419 5895683 64852513