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6164919289 = 785172
BaseRepresentation
bin1011011110111010…
…10011001111111001
3120220122101100102001
411233131103033321
5100111204404124
62455423341001
7305525643424
oct55735231771
916818340361
106164919289
112683a33121
121240751761
137732bc649
14426a9c9bb
15261362b44
hex16f7533f9

6164919289 has 3 divisors (see below), whose sum is σ = 6164997807. Its totient is φ = 6164840772.

The previous prime is 6164919269. The next prime is 6164919301. The reversal of 6164919289 is 9829194616.

The square root of 6164919289 is 78517.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 5954437225 + 210482064 = 77165^2 + 14508^2 .

It is not a de Polignac number, because 6164919289 - 213 = 6164911097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6164919239) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 39259 + ... + 117775.

It is an arithmetic number, because the mean of its divisors is an integer number (2054999269).

Almost surely, 26164919289 is an apocalyptic number.

6164919289 is the 78517-th square number.

6164919289 is the 39259-th centered octagonal number.

It is an amenable number.

6164919289 is a deficient number, since it is larger than the sum of its proper divisors (78518).

6164919289 is an frugal number, since it uses more digits than its factorization.

6164919289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157034 (or 78517 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 55.

The cubic root of 6164919289 is about 1833.6191319477.

The spelling of 6164919289 in words is "six billion, one hundred sixty-four million, nine hundred nineteen thousand, two hundred eighty-nine".

Divisors: 1 78517 6164919289