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1468192489 = 383172
BaseRepresentation
bin101011110000010…
…1101011011101001
310210022122220110121
41113200231123221
511001324124424
6401404243241
751245300401
oct12740553351
93708586417
101468192489
11693835825
1234b840521
131a523666a
14dcdc3801
1588d64ee4
hex5782d6e9

1468192489 has 3 divisors (see below), whose sum is σ = 1468230807. Its totient is φ = 1468154172.

The previous prime is 1468192477. The next prime is 1468192499. The reversal of 1468192489 is 9842918641.

The square root of 1468192489 is 38317.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9842918641 = 27133628057.

It can be written as a sum of positive squares in only one way, i.e., 953265625 + 514926864 = 30875^2 + 22692^2 .

It is not a de Polignac number, because 1468192489 - 223 = 1459803881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1468192409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 19159 + ... + 57475.

It is an arithmetic number, because the mean of its divisors is an integer number (489410269).

Almost surely, 21468192489 is an apocalyptic number.

1468192489 is the 38317-th square number.

1468192489 is the 19159-th centered octagonal number.

It is an amenable number.

1468192489 is a deficient number, since it is larger than the sum of its proper divisors (38318).

1468192489 is an frugal number, since it uses more digits than its factorization.

1468192489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76634 (or 38317 counting only the distinct ones).

The product of its digits is 995328, while the sum is 52.

The cubic root of 1468192489 is about 1136.5651430018.

The spelling of 1468192489 in words is "one billion, four hundred sixty-eight million, one hundred ninety-two thousand, four hundred eighty-nine".

Divisors: 1 38317 1468192489