Search a number
-
+
1241380546560 = 21135571121931
BaseRepresentation
bin10010000100001000000…
…010111110100000000000
311101200012221111200100000
4102010020002332200000
5130314321404442220
62350140553200000
7155454365354640
oct22041002764000
94350187450300
101241380546560
11439514a57200
12180707a00000
13900a569730b
14441241c2520
15224579c3390
hex121080be800

1241380546560 has 3456 divisors, whose sum is σ = 6090152140800. Its totient is φ = 236489932800.

The previous prime is 1241380546519. The next prime is 1241380546583. The reversal of 1241380546560 is 656450831421.

1241380546560 is a `hidden beast` number, since 1 + 2 + 4 + 1 + 3 + 80 + 5 + 4 + 6 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (3456).

It is a super-3 number, since 3×12413805465603 (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 40044533745 + ... + 40044533775.

It is an arithmetic number, because the mean of its divisors is an integer number (1762196800).

Almost surely, 21241380546560 is an apocalyptic number.

1241380546560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1241380546560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3045076070400).

1241380546560 is an abundant number, since it is smaller than the sum of its proper divisors (4848771594240).

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

1241380546560 is a wasteful number, since it uses less digits than its factorization.

1241380546560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 1241380546560 in words is "one trillion, two hundred forty-one billion, three hundred eighty million, five hundred forty-six thousand, five hundred sixty".