Search a number
-
+
13278039091200 = 211335213738851
BaseRepresentation
bin1100000100111000100011…
…0011011010100000000000
31202000100221101002210121000
43001032020303122200000
53220021411001404300
644123502535132000
72540210121026622
oct301161063324000
952010841083530
1013278039091200
11425a203a00194
1215a5458514000
13754162aa1020
1433c936680c12
151805d3d89c00
hexc1388cda800

13278039091200 has 576 divisors, whose sum is σ = 52524397598400. Its totient is φ = 3268435968000.

The previous prime is 13278039091199. The next prime is 13278039091211. The reversal of 13278039091200 is 219093087231.

13278039091200 is a `hidden beast` number, since 1 + 3 + 278 + 0 + 3 + 90 + 91 + 200 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17601775 + ... + 18340625.

It is an arithmetic number, because the mean of its divisors is an integer number (91188190275).

Almost surely, 213278039091200 is an apocalyptic number.

13278039091200 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 13278039091200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26262198799200).

13278039091200 is an abundant number, since it is smaller than the sum of its proper divisors (39246358507200).

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

13278039091200 is a wasteful number, since it uses less digits than its factorization.

13278039091200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738905 (or 738874 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 13278039091200 in words is "thirteen trillion, two hundred seventy-eight billion, thirty-nine million, ninety-one thousand, two hundred".