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289179941 = 2129135829
BaseRepresentation
bin10001001111001…
…000100100100101
3202011010212022012
4101033020210211
51043012224231
644410044005
710110663131
oct2117104445
9664125265
10289179941
11139264196
1280a19605
1347bacbbb
142a5983c1
151a5c2e2b
hex113c8925

289179941 has 4 divisors (see below), whose sum is σ = 289317900. Its totient is φ = 289041984.

The previous prime is 289179907. The next prime is 289179953. The reversal of 289179941 is 149971982.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 84088900 + 205091041 = 9170^2 + 14321^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-289179941 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 289179941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289179971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65786 + ... + 70043.

It is an arithmetic number, because the mean of its divisors is an integer number (72329475).

Almost surely, 2289179941 is an apocalyptic number.

It is an amenable number.

289179941 is a deficient number, since it is larger than the sum of its proper divisors (137959).

289179941 is a wasteful number, since it uses less digits than its factorization.

289179941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137958.

The product of its digits is 326592, while the sum is 50.

The square root of 289179941 is about 17005.2915588060. The cubic root of 289179941 is about 661.2860911330.

The spelling of 289179941 in words is "two hundred eighty-nine million, one hundred seventy-nine thousand, nine hundred forty-one".

Divisors: 1 2129 135829 289179941