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89000947 = 7371133041
BaseRepresentation
bin1010100111000…
…00101111110011
320012110201100101
411103200233303
5140241012242
612455333231
72130331660
oct523405763
9205421311
1089000947
1146269802
1225981217
13155922a9
14bb6aa67
157c309b7
hex54e0bf3

89000947 has 16 divisors (see below), whose sum is σ = 105423552. Its totient is φ = 73543680.

The previous prime is 89000941. The next prime is 89000963. The reversal of 89000947 is 74900098.

It is a happy number.

It is not a de Polignac number, because 89000947 - 27 = 89000819 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89000941) 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, 27747 + ... + 30787.

It is an arithmetic number, because the mean of its divisors is an integer number (6588972).

Almost surely, 289000947 is an apocalyptic number.

89000947 is a deficient number, since it is larger than the sum of its proper divisors (16422605).

89000947 is a wasteful number, since it uses less digits than its factorization.

89000947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3198.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 89000947 is about 9434.0313228227. The cubic root of 89000947 is about 446.4760931160.

The spelling of 89000947 in words is "eighty-nine million, nine hundred forty-seven", and thus it is an aban number.

Divisors: 1 7 37 113 259 791 3041 4181 21287 29267 112517 343633 787619 2405431 12714421 89000947