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289348942 = 21753211761
BaseRepresentation
bin10001001111110…
…001110101001110
3202011110110010111
4101033301311032
51043033131232
644413430234
710112265631
oct2117616516
9664413114
10289348942
1113936a163
1280a9b37a
1347c3babc
142a5ddc18
151a608047
hex113f1d4e

289348942 has 32 divisors (see below), whose sum is σ = 471062304. Its totient is φ = 132787200.

The previous prime is 289348919. The next prime is 289348949. The reversal of 289348942 is 249843982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289348949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 379842 + ... + 380602.

It is an arithmetic number, because the mean of its divisors is an integer number (14720697).

Almost surely, 2289348942 is an apocalyptic number.

289348942 is a deficient number, since it is larger than the sum of its proper divisors (181713362).

289348942 is a wasteful number, since it uses less digits than its factorization.

289348942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044.

The product of its digits is 995328, while the sum is 49.

The square root of 289348942 is about 17010.2599039521. The cubic root of 289348942 is about 661.4148878104.

The spelling of 289348942 in words is "two hundred eighty-nine million, three hundred forty-eight thousand, nine hundred forty-two".

Divisors: 1 2 17 34 53 106 211 422 761 901 1522 1802 3587 7174 11183 12937 22366 25874 40333 80666 160571 190111 321142 380222 685661 1371322 2729707 5459414 8510263 17020526 144674471 289348942