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64080543 = 321360181
BaseRepresentation
bin1111010001110…
…0101010011111
311110120121222110
43310130222133
5112401034133
610205245103
71405450512
oct364345237
9143517873
1064080543
113319872a
1219563793
13103783a7
148720d79
15595bc63
hex3d1ca9f

64080543 has 4 divisors (see below), whose sum is σ = 85440728. Its totient is φ = 42720360.

The previous prime is 64080491. The next prime is 64080563. The reversal of 64080543 is 34508046.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 64080543 - 26 = 64080479 is a prime.

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 64080543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64080563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10680088 + ... + 10680093.

It is an arithmetic number, because the mean of its divisors is an integer number (21360182).

Almost surely, 264080543 is an apocalyptic number.

64080543 is a deficient number, since it is larger than the sum of its proper divisors (21360185).

64080543 is a wasteful number, since it uses less digits than its factorization.

64080543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21360184.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 64080543 is about 8005.0323547129. The cubic root of 64080543 is about 400.1677275755.

Adding to 64080543 its reverse (34508046), we get a palindrome (98588589).

The spelling of 64080543 in words is "sixty-four million, eighty thousand, five hundred forty-three".

Divisors: 1 3 21360181 64080543