Search a number
-
+
219904105512960 = 219375112317
BaseRepresentation
bin110010000000000001101010…
…000110000000000000000000
31001211121121221012200220000000
4302000001222012000000000
5212310402102002403320
62055410315040000000
764214355506550441
oct6200015206000000
91054547835626000
10219904105512960
1164082897745a00
12207b6a80000000
139591b394a879b
143c435b619d2c8
151a65325353c90
hexc8006a180000

219904105512960 has 1920 divisors, whose sum is σ = 872777123064000. Its totient is φ = 53141915566080.

The previous prime is 219904105512881. The next prime is 219904105512989. The reversal of 219904105512960 is 69215501409912.

It is a happy number.

219904105512960 is a `hidden beast` number, since 2 + 1 + 9 + 9 + 0 + 4 + 1 + 0 + 551 + 29 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (1920).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 219904105512897 and 219904105512906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 693703802722 + ... + 693703803038.

Almost surely, 2219904105512960 is an apocalyptic number.

219904105512960 is a gapful number since it is divisible by the number (20) 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 219904105512960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (436388561532000).

219904105512960 is an abundant number, since it is smaller than the sum of its proper divisors (652873017551040).

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

219904105512960 is an frugal number, since it uses more digits than its factorization.

219904105512960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 54.

The spelling of 219904105512960 in words is "two hundred nineteen trillion, nine hundred four billion, one hundred five million, five hundred twelve thousand, nine hundred sixty".