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65428476541 = 414613461641
BaseRepresentation
bin111100111011110101…
…110101001001111101
320020212211012222121221
4330323311311021331
52032444142222131
650020223153341
74504243605631
oct747365651175
9206784188557
1065428476541
112582573a90a
121081ba45851
1362292baa9c
14324980cdc1
151a7e0e5411
hexf3bd7527d

65428476541 has 8 divisors (see below), whose sum is σ = 67169701368. Its totient is φ = 63694176000.

The previous prime is 65428476539. The next prime is 65428476557. The reversal of 65428476541 is 14567482456.

It can be written as a sum of positive squares in 4 ways, for example, as 9672100 + 65418804441 = 3110^2 + 255771^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 65428476541 - 21 = 65428476539 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65428471541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1711920 + ... + 1749721.

It is an arithmetic number, because the mean of its divisors is an integer number (8396212671).

Almost surely, 265428476541 is an apocalyptic number.

It is an amenable number.

65428476541 is a deficient number, since it is larger than the sum of its proper divisors (1741224827).

65428476541 is a wasteful number, since it uses less digits than its factorization.

65428476541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3462143.

The product of its digits is 6451200, while the sum is 52.

The spelling of 65428476541 in words is "sixty-five billion, four hundred twenty-eight million, four hundred seventy-six thousand, five hundred forty-one".

Divisors: 1 41 461 18901 3461641 141927281 1595816501 65428476541