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289102046 = 2732836997
BaseRepresentation
bin10001001110110…
…101100011011110
3202010222220110012
4101032311203132
51043002231141
644404243222
710110220052
oct2116654336
9663886405
10289102046
11139210712
12809a0512
1347b835cc
142a577c62
151a5a9ceb
hex113b58de

289102046 has 16 divisors (see below), whose sum is σ = 441209904. Its totient is φ = 142046784.

The previous prime is 289102027. The next prime is 289102049. The reversal of 289102046 is 640201982.

It is a super-2 number, since 2×2891020462 = 167159986002772232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289102049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37820 + ... + 44816.

It is an arithmetic number, because the mean of its divisors is an integer number (27575619).

Almost surely, 2289102046 is an apocalyptic number.

289102046 is a deficient number, since it is larger than the sum of its proper divisors (152107858).

289102046 is a wasteful number, since it uses less digits than its factorization.

289102046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7355.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 289102046 is about 17003.0010880433. The cubic root of 289102046 is about 661.2267099905.

The spelling of 289102046 in words is "two hundred eighty-nine million, one hundred two thousand, forty-six".

Divisors: 1 2 73 146 283 566 6997 13994 20659 41318 510781 1021562 1980151 3960302 144551023 289102046