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13780482660 = 22325722367931
BaseRepresentation
bin11001101010110000…
…10111101001100100
31022120101102001101200
430311120113221210
5211210300421120
610155231322500
7665331112200
oct146530275144
938511361350
1013780482660
1159317a564a
122807080430
1313b7cb0069
1494a293b00
15559c20e90
hex335617a64

13780482660 has 216 divisors, whose sum is σ = 50740312896. Its totient is φ = 3012831360.

The previous prime is 13780482647. The next prime is 13780482679. The reversal of 13780482660 is 6628408731.

13780482660 is a `hidden beast` number, since 1 + 37 + 80 + 482 + 6 + 60 = 666.

13780482660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 168895 + ... + 236825.

It is an arithmetic number, because the mean of its divisors is an integer number (234908856).

Almost surely, 213780482660 is an apocalyptic number.

13780482660 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 13780482660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25370156448).

13780482660 is an abundant number, since it is smaller than the sum of its proper divisors (36959830236).

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

13780482660 is a wasteful number, since it uses less digits than its factorization.

13780482660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67983 (or 67971 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 13780482660 in words is "thirteen billion, seven hundred eighty million, four hundred eighty-two thousand, six hundred sixty".