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88940289 = 367442489
BaseRepresentation
bin1010100110100…
…01111100000001
320012100122010210
411103101330001
5140232042124
612454144333
72126660064
oct523217401
9205318123
1088940289
1146228179
12259520a9
13155707b9
14bb528db
157c1ca29
hex54d1f01

88940289 has 8 divisors (see below), whose sum is σ = 120357280. Its totient is φ = 58408416.

The previous prime is 88940261. The next prime is 88940321. The reversal of 88940289 is 98204988.

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

It is a de Polignac number, because none of the positive numbers 2k-88940289 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (88940249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221044 + ... + 221445.

It is an arithmetic number, because the mean of its divisors is an integer number (15044660).

Almost surely, 288940289 is an apocalyptic number.

It is an amenable number.

88940289 is a deficient number, since it is larger than the sum of its proper divisors (31416991).

88940289 is a wasteful number, since it uses less digits than its factorization.

88940289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442559.

The product of its (nonzero) digits is 331776, while the sum is 48.

The square root of 88940289 is about 9430.8159244044. The cubic root of 88940289 is about 446.3746391326.

The spelling of 88940289 in words is "eighty-eight million, nine hundred forty thousand, two hundred eighty-nine".

Divisors: 1 3 67 201 442489 1327467 29646763 88940289