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189060289 = 1131612149
BaseRepresentation
bin10110100010011…
…01010011000001
3111011202020221221
423101031103001
5341344412124
630432115041
74453662115
oct1321152301
9434666857
10189060289
11977a0880
1253395a81
1330226ac2
141b175745
15118e7ce4
hexb44d4c1

189060289 has 24 divisors (see below), whose sum is σ = 217900800. Its totient is φ = 162504000.

The previous prime is 189060283. The next prime is 189060323. The reversal of 189060289 is 982060981.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-189060289 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189060283) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1268787 + ... + 1268935.

It is an arithmetic number, because the mean of its divisors is an integer number (9079200).

Almost surely, 2189060289 is an apocalyptic number.

It is an amenable number.

189060289 is a deficient number, since it is larger than the sum of its proper divisors (28840511).

189060289 is a wasteful number, since it uses less digits than its factorization.

189060289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313 (or 252 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 189060289 is about 13749.9195997649. The cubic root of 189060289 is about 573.9403688250.

The spelling of 189060289 in words is "one hundred eighty-nine million, sixty thousand, two hundred eighty-nine".

Divisors: 1 11 31 61 149 341 671 1639 1891 3721 4619 9089 20801 40931 50809 99979 115351 281759 554429 1268861 3099349 6098719 17187299 189060289