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18833201 = 61893469
BaseRepresentation
bin100011111010…
…1111100110001
31022102211021222
41013311330301
514310130301
61511354425
7316036202
oct107657461
938384258
1018833201
11a6a3732
126382a15
133b9530a
1427035a9
1519c031b
hex11f5f31

18833201 has 8 divisors (see below), whose sum is σ = 19362600. Its totient is φ = 18311040.

The previous prime is 18833149. The next prime is 18833203. The reversal of 18833201 is 10233881.

It can be written as a sum of positive squares in 4 ways, for example, as 2640625 + 16192576 = 1625^2 + 4024^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 18833201 - 218 = 18571057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18833203) 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, 3695 + ... + 7163.

It is an arithmetic number, because the mean of its divisors is an integer number (2420325).

Almost surely, 218833201 is an apocalyptic number.

It is an amenable number.

18833201 is a deficient number, since it is larger than the sum of its proper divisors (529399).

18833201 is an equidigital number, since it uses as much as digits as its factorization.

18833201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3619.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 18833201 is about 4339.7236087106. The cubic root of 18833201 is about 266.0570147444.

The spelling of 18833201 in words is "eighteen million, eight hundred thirty-three thousand, two hundred one".

Divisors: 1 61 89 3469 5429 211609 308741 18833201