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64113169 = 223287503
BaseRepresentation
bin1111010010010…
…0101000010001
311110122021201211
43310210220101
5112403110134
610210100121
71405644601
oct364445021
9143567654
1064113169
113321019a
121957a641
131038a1b3
14872cc01
155966764
hex3d24a11

64113169 has 4 divisors (see below), whose sum is σ = 64400896. Its totient is φ = 63825444.

The previous prime is 64113151. The next prime is 64113209. The reversal of 64113169 is 96131146.

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 64113169 - 27 = 64113041 is a prime.

It is a super-2 number, since 2×641131692 = 8220996878445122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64113169.

It is not an unprimeable number, because it can be changed into a prime (64113139) 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, 143529 + ... + 143974.

It is an arithmetic number, because the mean of its divisors is an integer number (16100224).

Almost surely, 264113169 is an apocalyptic number.

It is an amenable number.

64113169 is a deficient number, since it is larger than the sum of its proper divisors (287727).

64113169 is a wasteful number, since it uses less digits than its factorization.

64113169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287726.

The product of its digits is 3888, while the sum is 31.

The square root of 64113169 is about 8007.0699384981. The cubic root of 64113169 is about 400.2356299191.

The spelling of 64113169 in words is "sixty-four million, one hundred thirteen thousand, one hundred sixty-nine".

Divisors: 1 223 287503 64113169