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89409235 = 571251857
BaseRepresentation
bin1010101010001…
…00011011010011
320020020110102011
411111010123103
5140342043420
612512203351
72133652216
oct525043323
9206213364
1089409235
1146518533
1225b39557
13156a6096
14bc3577d
157cb195a
hex55446d3

89409235 has 8 divisors (see below), whose sum is σ = 108802656. Its totient is φ = 70519680.

The previous prime is 89409227. The next prime is 89409259. The reversal of 89409235 is 53290498.

It is a happy number.

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

It is not a de Polignac number, because 89409235 - 23 = 89409227 is a prime.

It is a super-2 number, since 2×894092352 = 15988022606570450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 125574 + ... + 126283.

It is an arithmetic number, because the mean of its divisors is an integer number (13600332).

Almost surely, 289409235 is an apocalyptic number.

89409235 is a deficient number, since it is larger than the sum of its proper divisors (19393421).

89409235 is a wasteful number, since it uses less digits than its factorization.

89409235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251933.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 89409235 is about 9455.6456680652. The cubic root of 89409235 is about 447.1577817012.

The spelling of 89409235 in words is "eighty-nine million, four hundred nine thousand, two hundred thirty-five".

Divisors: 1 5 71 355 251857 1259285 17881847 89409235