Search a number
-
+
54189289 = 7116183139
BaseRepresentation
bin1100111010110…
…1110011101001
310202222002201201
43032231303221
5102333024124
65213244201
71225413160
oct316556351
9122862651
1054189289
1128652240
1216193661
13b2c418b
1472a83d7
154b56144
hex33adce9

54189289 has 32 divisors (see below), whose sum is σ = 69995520. Its totient is φ = 40737600.

The previous prime is 54189283. The next prime is 54189293. The reversal of 54189289 is 98298145.

It is a cyclic number.

It is not a de Polignac number, because 54189289 - 25 = 54189257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54189283) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 389782 + ... + 389920.

It is an arithmetic number, because the mean of its divisors is an integer number (2187360).

Almost surely, 254189289 is an apocalyptic number.

It is an amenable number.

54189289 is a deficient number, since it is larger than the sum of its proper divisors (15806231).

54189289 is a wasteful number, since it uses less digits than its factorization.

54189289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301.

The product of its digits is 207360, while the sum is 46.

The square root of 54189289 is about 7361.3374464156. The cubic root of 54189289 is about 378.4174465873.

The spelling of 54189289 in words is "fifty-four million, one hundred eighty-nine thousand, two hundred eighty-nine".

Divisors: 1 7 11 61 77 83 139 427 581 671 913 973 1529 4697 5063 6391 8479 10703 11537 35441 55693 59353 80759 93269 126907 389851 652883 703757 888349 4926299 7741327 54189289