Search a number
-
+
1320061381868 = 22499189661103
BaseRepresentation
bin10011001101011001110…
…010100010110011101100
311200012022100101020120102
4103031121302202303230
5133111441203204433
62450232224410232
7164241231416225
oct23153162426354
94605270336512
101320061381868
11469920266329
12193a05a76978
1397634413cb8
1447c69a8c24c
15245102684e8
hex13359ca2cec

1320061381868 has 12 divisors (see below), whose sum is σ = 2310115540320. Its totient is φ = 660028370352.

The previous prime is 1320061381867. The next prime is 1320061381871. The reversal of 1320061381868 is 8681831600231.

It is not an unprimeable number, because it can be changed into a prime (1320061381867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1666205 + ... + 2327307.

It is an arithmetic number, because the mean of its divisors is an integer number (192509628360).

Almost surely, 21320061381868 is an apocalyptic number.

It is an amenable number.

1320061381868 is a deficient number, since it is larger than the sum of its proper divisors (990054158452).

1320061381868 is a wasteful number, since it uses less digits than its factorization.

1320061381868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160296 (or 1160294 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 47.

The spelling of 1320061381868 in words is "one trillion, three hundred twenty billion, sixty-one million, three hundred eighty-one thousand, eight hundred sixty-eight".

Divisors: 1 2 4 499189 661103 998378 1322206 1996756 2644412 330015345467 660030690934 1320061381868