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87289334 = 21133111987
BaseRepresentation
bin1010011001111…
…10110111110110
320002020202110022
411030332313312
5134321224314
612354525142
72106642566
oct514766766
9202222408
1087289334
11452aa850
12252967b2
13151131c2
14b842da6
1579e378e
hex533edf6

87289334 has 16 divisors (see below), whose sum is σ = 143280576. Its totient is φ = 39553800.

The previous prime is 87289309. The next prime is 87289337. The reversal of 87289334 is 43398278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87289337) 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, 1289 + ... + 13275.

It is an arithmetic number, because the mean of its divisors is an integer number (8955036).

Almost surely, 287289334 is an apocalyptic number.

87289334 is a deficient number, since it is larger than the sum of its proper divisors (55991242).

87289334 is a wasteful number, since it uses less digits than its factorization.

87289334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12331.

The product of its digits is 290304, while the sum is 44.

The square root of 87289334 is about 9342.8761096356. The cubic root of 87289334 is about 443.5954265836.

The spelling of 87289334 in words is "eighty-seven million, two hundred eighty-nine thousand, three hundred thirty-four".

Divisors: 1 2 11 22 331 662 3641 7282 11987 23974 131857 263714 3967697 7935394 43644667 87289334