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64041165 = 335474379
BaseRepresentation
bin1111010001001…
…1000011001101
311110111121222000
43310103003031
5112343304130
610204342513
71405224636
oct364230315
9143447860
1064041165
1133171091
1219544a39
13103634a6
14871088d
155950260
hex3d130cd

64041165 has 16 divisors (see below), whose sum is σ = 113851200. Its totient is φ = 34155216.

The previous prime is 64041163. The next prime is 64041167. The reversal of 64041165 is 56114046.

64041165 is a `hidden beast` number, since 640 + 4 + 1 + 16 + 5 = 666.

64041165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (64041163) and next prime (64041167).

It is not a de Polignac number, because 64041165 - 21 = 64041163 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64041163) 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 15 ways as a sum of consecutive naturals, for example, 237055 + ... + 237324.

It is an arithmetic number, because the mean of its divisors is an integer number (7115700).

Almost surely, 264041165 is an apocalyptic number.

It is an amenable number.

64041165 is a deficient number, since it is larger than the sum of its proper divisors (49810035).

64041165 is a wasteful number, since it uses less digits than its factorization.

64041165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474393 (or 474387 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 64041165 is about 8002.5723989227. The cubic root of 64041165 is about 400.0857420361.

It can be divided in two parts, 6404 and 1165, that added together give a square (7569 = 872).

The spelling of 64041165 in words is "sixty-four million, forty-one thousand, one hundred sixty-five".

Divisors: 1 3 5 9 15 27 45 135 474379 1423137 2371895 4269411 7115685 12808233 21347055 64041165