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89303031 = 329922559
BaseRepresentation
bin1010101001010…
…10011111110111
320020001001201200
411110222133313
5140330144111
612510023543
72133030456
oct524523767
9206031650
1089303031
1146455764
1225aa7bb3
131566993c
14bc08b9d
157c90256
hex552a7f7

89303031 has 6 divisors (see below), whose sum is σ = 128993280. Its totient is φ = 59535348.

The previous prime is 89303029. The next prime is 89303063. The reversal of 89303031 is 13030398.

It is not a de Polignac number, because 89303031 - 21 = 89303029 is a prime.

It is a super-2 number, since 2×893030312 = 15950062691573922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 89302986 and 89303004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89303231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4961271 + ... + 4961288.

It is an arithmetic number, because the mean of its divisors is an integer number (21498880).

Almost surely, 289303031 is an apocalyptic number.

89303031 is a deficient number, since it is larger than the sum of its proper divisors (39690249).

89303031 is a wasteful number, since it uses less digits than its factorization.

89303031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9922565 (or 9922562 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 89303031 is about 9450.0280951963. The cubic root of 89303031 is about 446.9806606951.

It can be divided in two parts, 8 and 9303031, that added together give a palindrome (9303039).

The spelling of 89303031 in words is "eighty-nine million, three hundred three thousand, thirty-one".

Divisors: 1 3 9 9922559 29767677 89303031