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289242982 = 273478971
BaseRepresentation
bin10001001111010…
…111111101100110
3202011021001210001
4101033113331212
51043021233412
644411251514
710111345000
oct2117277546
9664231701
10289242982
111392a7596
1280a49b9a
1347c027c2
142a5b3370
151a5d6957
hex113d7f66

289242982 has 32 divisors (see below), whose sum is σ = 516787200. Its totient is φ = 121310280.

The previous prime is 289242979. The next prime is 289242991.

289242982 is nontrivially palindromic in base 10.

It is a super-3 number, since 3×2892429823 (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27757 + ... + 36727.

It is an arithmetic number, because the mean of its divisors is an integer number (16149600).

Almost surely, 2289242982 is an apocalyptic number.

289242982 is a deficient number, since it is larger than the sum of its proper divisors (227544218).

289242982 is an equidigital number, since it uses as much as digits as its factorization.

289242982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9041 (or 9027 counting only the distinct ones).

The product of its digits is 331776, while the sum is 46.

The square root of 289242982 is about 17007.1450278993. The cubic root of 289242982 is about 661.3341409244.

The spelling of 289242982 in words is "two hundred eighty-nine million, two hundred forty-two thousand, nine hundred eighty-two".

Divisors: 1 2 7 14 47 49 94 98 329 343 658 686 2303 4606 8971 16121 17942 32242 62797 125594 421637 439579 843274 879158 2951459 3077053 5902918 6154106 20660213 41320426 144621491 289242982