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89215029 = 3237267913
BaseRepresentation
bin1010101000101…
…01000000110101
320012212121000100
411110111000311
5140314340104
612504104313
72132213061
oct524250065
9205777010
1089215029
11463a5632
1225a65099
1315638877
14bbc4aa1
157c74139
hex5515035

89215029 has 12 divisors (see below), whose sum is σ = 132349516. Its totient is φ = 57868992.

The previous prime is 89215019. The next prime is 89215033. The reversal of 89215029 is 92051298.

It can be written as a sum of positive squares in 2 ways, for example, as 42224004 + 46991025 = 6498^2 + 6855^2 .

It is not a de Polignac number, because 89215029 - 28 = 89214773 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89214984 and 89215002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89215019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133624 + ... + 134289.

Almost surely, 289215029 is an apocalyptic number.

It is an amenable number.

89215029 is a deficient number, since it is larger than the sum of its proper divisors (43134487).

89215029 is a wasteful number, since it uses less digits than its factorization.

89215029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267956 (or 267953 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 89215029 is about 9445.3707709121. The cubic root of 89215029 is about 446.8337895327.

The spelling of 89215029 in words is "eighty-nine million, two hundred fifteen thousand, twenty-nine".

Divisors: 1 3 9 37 111 333 267913 803739 2411217 9912781 29738343 89215029