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89278386 = 2314879731
BaseRepresentation
bin1010101001001…
…00011110110010
320012222210220220
411110210132302
5140323402021
612505313510
72132565561
oct524443662
9205883826
1089278386
114643919a
1225a95896
131565b662
14bbddbd8
157c87cc6
hex55247b2

89278386 has 8 divisors (see below), whose sum is σ = 178556784. Its totient is φ = 29759460.

The previous prime is 89278381. The next prime is 89278403. The reversal of 89278386 is 68387298.

It is a sphenic number, since it is the product of 3 distinct primes.

89278386 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (89278381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7439860 + ... + 7439871.

It is an arithmetic number, because the mean of its divisors is an integer number (22319598).

Almost surely, 289278386 is an apocalyptic number.

89278386 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

89278386 is a wasteful number, since it uses less digits than its factorization.

89278386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14879736.

The product of its digits is 1161216, while the sum is 51.

The square root of 89278386 is about 9448.7240408428. The cubic root of 89278386 is about 446.9395390901.

The spelling of 89278386 in words is "eighty-nine million, two hundred seventy-eight thousand, three hundred eighty-six".

Divisors: 1 2 3 6 14879731 29759462 44639193 89278386