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289201494 = 232310392017
BaseRepresentation
bin10001001111001…
…101110101010110
3202011011221212110
4101033031311112
51043013421434
644410331450
710111113021
oct2117156526
9664157773
10289201494
111392793aa
1280a29b86
1347bb995a
142a5a21b8
151a5c94e9
hex113cdd56

289201494 has 32 divisors (see below), whose sum is σ = 604431360. Its totient is φ = 92074752.

The previous prime is 289201487. The next prime is 289201499. The reversal of 289201494 is 494102982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289201499) 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, 142374 + ... + 144390.

It is an arithmetic number, because the mean of its divisors is an integer number (18888480).

Almost surely, 2289201494 is an apocalyptic number.

289201494 is an abundant number, since it is smaller than the sum of its proper divisors (315229866).

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

289201494 is a wasteful number, since it uses less digits than its factorization.

289201494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3084.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 289201494 is about 17005.9252615081. The cubic root of 289201494 is about 661.3025195950.

The spelling of 289201494 in words is "two hundred eighty-nine million, two hundred one thousand, four hundred ninety-four".

Divisors: 1 2 3 6 23 46 69 138 1039 2017 2078 3117 4034 6051 6234 12102 23897 46391 47794 71691 92782 139173 143382 278346 2095663 4191326 6286989 12573978 48200249 96400498 144600747 289201494