Search a number
-
+
189428607133792 = 25132979227875591
BaseRepresentation
bin101011000100100011001000…
…110101101010100001100000
3220211201012100022220201101121
4223010203020311222201200
5144312044241411240132
61510514144544142024
754620523321466465
oct5304431065524140
9824635308821347
10189428607133792
11553a3248373874
12192b4649307914
13819106c119880
1434ac571ac366c
1516d77159c1497
hexac48c8d6a860

189428607133792 has 192 divisors, whose sum is σ = 422587317196800. Its totient is φ = 82978025195520.

The previous prime is 189428607133699. The next prime is 189428607133849. The reversal of 189428607133792 is 297331706824981.

It is a super-3 number, since 3×1894286071337923 (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215905917 + ... + 216781507.

It is an arithmetic number, because the mean of its divisors is an integer number (2200975610400).

Almost surely, 2189428607133792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189428607133792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211293658598400).

189428607133792 is an abundant number, since it is smaller than the sum of its proper divisors (233158710063008).

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

189428607133792 is a wasteful number, since it uses less digits than its factorization.

189428607133792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875949 (or 875941 counting only the distinct ones).

The product of its (nonzero) digits is 219469824, while the sum is 70.

The spelling of 189428607133792 in words is "one hundred eighty-nine trillion, four hundred twenty-eight billion, six hundred seven million, one hundred thirty-three thousand, seven hundred ninety-two".