Search a number
-
+
289029843042240 = 263523371375474721
BaseRepresentation
bin100000110110111110000000…
…1000111111011111111000000
31101220100222112201020112100110
41001231330001013323333000
5300340431104304322430
62502414251000351320
7114610500644043456
oct10155740107737700
91356328481215313
10289029843042240
118410396044a993
12284bbb05775540
13c5375219ac051
14515319492c9d6
1523634e21277b0
hex106df011fbfc0

289029843042240 has 896 divisors, whose sum is σ = 992648358217728. Its totient is φ = 71062207856640.

The previous prime is 289029843042221. The next prime is 289029843042299. The reversal of 289029843042240 is 42240348920982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 61222163080 + ... + 61222167800.

Almost surely, 2289029843042240 is an apocalyptic number.

289029843042240 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 289029843042240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (496324179108864).

289029843042240 is an abundant number, since it is smaller than the sum of its proper divisors (703618515175488).

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

289029843042240 is a wasteful number, since it uses less digits than its factorization.

289029843042240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5485 (or 5475 counting only the distinct ones).

The product of its (nonzero) digits is 15925248, while the sum is 57.

The spelling of 289029843042240 in words is "two hundred eighty-nine trillion, twenty-nine billion, eight hundred forty-three million, forty-two thousand, two hundred forty".