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32989109 is a prime number
BaseRepresentation
bin111110111010…
…1111110110101
32022002000112212
41331311332311
531421122414
63135023205
7550255106
oct175657665
968060485
1032989109
111769222a
12b06ab05
136ab06aa
14454a3ad
152d6983e
hex1f75fb5

32989109 has 2 divisors, whose sum is σ = 32989110. Its totient is φ = 32989108.

The previous prime is 32989091. The next prime is 32989123. The reversal of 32989109 is 90198923.

Together with previous prime (32989091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29398084 + 3591025 = 5422^2 + 1895^2 .

It is a cyclic number.

It is not a de Polignac number, because 32989109 - 28 = 32988853 is a prime.

It is a super-2 number, since 2×329891092 = 2176562625227762, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32989169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16494554 + 16494555.

It is an arithmetic number, because the mean of its divisors is an integer number (16494555).

Almost surely, 232989109 is an apocalyptic number.

It is an amenable number.

32989109 is a deficient number, since it is larger than the sum of its proper divisors (1).

32989109 is an equidigital number, since it uses as much as digits as its factorization.

32989109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 32989109 is about 5743.6146284374. The cubic root of 32989109 is about 320.7181429995.

The spelling of 32989109 in words is "thirty-two million, nine hundred eighty-nine thousand, one hundred nine".