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20594469600769 = 45381132
BaseRepresentation
bin1001010111011000001100…
…00010110111111000000001
32200220210220222220011121211
410223230012002313320001
510144404433204211034
6111444545124450121
74223621104164661
oct453540602677001
980823828804554
1020594469600769
11662007a213859
12238741a249941
13b6508624595c
14512ac5c141a1
1525aa9942bd64
hex12bb060b7e01

20594469600769 has 3 divisors (see below), whose sum is σ = 20594474138883. Its totient is φ = 20594465062656.

The previous prime is 20594469600739. The next prime is 20594469600773. The reversal of 20594469600769 is 96700696449502.

The square root of 20594469600769 is 4538113.

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., 632446420225 + 19962023180544 = 795265^2 + 4467888^2 .

It is not a de Polignac number, because 20594469600769 - 217 = 20594469469697 is a prime.

It is a super-2 number, since 2×205944696007692 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20594469600739) 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, 2269057 + ... + 6807169.

It is an arithmetic number, because the mean of its divisors is an integer number (6864824712961).

Almost surely, 220594469600769 is an apocalyptic number.

20594469600769 is the 4538113-rd square number.

20594469600769 is the 2269057-th centered octagonal number.

It is an amenable number.

20594469600769 is a deficient number, since it is larger than the sum of its proper divisors (4538114).

20594469600769 is an frugal number, since it uses more digits than its factorization.

20594469600769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9076226 (or 4538113 counting only the distinct ones).

The product of its (nonzero) digits is 176359680, while the sum is 67.

The spelling of 20594469600769 in words is "twenty trillion, five hundred ninety-four billion, four hundred sixty-nine million, six hundred thousand, seven hundred sixty-nine".

Divisors: 1 4538113 20594469600769