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64524982918 = 21115629187661
BaseRepresentation
bin111100000101111111…
…010001101010000110
320011112212010202101011
4330011333101222012
52024121343423133
645350430152434
74442663206504
oct740577215206
9204485122334
1064524982918
1125401741770
121060935271a
136114070186
1431a1823674
151a29b286cd
hexf05fd1a86

64524982918 has 16 divisors (see below), whose sum is σ = 105593654160. Its totient is φ = 29327504800.

The previous prime is 64524982913. The next prime is 64524982969. The reversal of 64524982918 is 81928942546.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64524982913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250008 + ... + 437668.

It is an arithmetic number, because the mean of its divisors is an integer number (6599603385).

Almost surely, 264524982918 is an apocalyptic number.

64524982918 is a deficient number, since it is larger than the sum of its proper divisors (41068671242).

64524982918 is a wasteful number, since it uses less digits than its factorization.

64524982918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203303.

The product of its digits is 9953280, while the sum is 58.

The spelling of 64524982918 in words is "sixty-four billion, five hundred twenty-four million, nine hundred eighty-two thousand, nine hundred eighteen".

Divisors: 1 2 11 22 15629 31258 171919 187661 343838 375322 2064271 4128542 2932953769 5865907538 32262491459 64524982918