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1468161468 = 223240782263
BaseRepresentation
bin101011110000010…
…0101110110111100
310210022121022220200
41113200211312330
511001322131333
6401403443500
751245111064
oct12740456674
93708538820
101468161468
11693814494
1234b826590
131a52254c7
14dcdb63a4
1588d5ac13
hex57825dbc

1468161468 has 18 divisors (see below), whose sum is σ = 3711186024. Its totient is φ = 489387144.

The previous prime is 1468161467. The next prime is 1468161491. The reversal of 1468161468 is 8641618641.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×14681614682 = 4310996192239830048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1468161467) 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 5 ways as a sum of consecutive naturals, for example, 20391096 + ... + 20391167.

Almost surely, 21468161468 is an apocalyptic number.

1468161468 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1468161468 is an abundant number, since it is smaller than the sum of its proper divisors (2243024556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1468161468 is a wasteful number, since it uses less digits than its factorization.

1468161468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40782273 (or 40782268 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 1468161468 is about 38316.5952036451. The cubic root of 1468161468 is about 1136.5571382305.

The spelling of 1468161468 in words is "one billion, four hundred sixty-eight million, one hundred sixty-one thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 40782263 81564526 122346789 163129052 244693578 367040367 489387156 734080734 1468161468