Search a number
-
+
1869483668 = 221335951609
BaseRepresentation
bin110111101101110…
…0000111010010100
311211021202121110212
41233123200322110
512312041434133
6505301304552
764220230463
oct15733407224
94737677425
101869483668
1187a302828
12442105158
1323a40a870
1413a4029da
15ae1d1148
hex6f6e0e94

1869483668 has 12 divisors (see below), whose sum is σ = 3523257780. Its totient is φ = 862838592.

The previous prime is 1869483661. The next prime is 1869483691. The reversal of 1869483668 is 8663849681.

It can be written as a sum of positive squares in 2 ways, for example, as 372412804 + 1497070864 = 19298^2 + 38692^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1869483661) 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 3 ways as a sum of consecutive naturals, for example, 17975753 + ... + 17975856.

It is an arithmetic number, because the mean of its divisors is an integer number (293604815).

Almost surely, 21869483668 is an apocalyptic number.

It is an amenable number.

1869483668 is a deficient number, since it is larger than the sum of its proper divisors (1653774112).

1869483668 is a wasteful number, since it uses less digits than its factorization.

1869483668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35951626 (or 35951624 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 59.

The square root of 1869483668 is about 43237.5261549502. The cubic root of 1869483668 is about 1231.8955653379.

The spelling of 1869483668 in words is "one billion, eight hundred sixty-nine million, four hundred eighty-three thousand, six hundred sixty-eight".

Divisors: 1 2 4 13 26 52 35951609 71903218 143806436 467370917 934741834 1869483668