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203471073 = 32133156099
BaseRepresentation
bin11000010000010…
…11100011100001
3112011212101211200
430020023203201
5404042033243
632105031413
75020322061
oct1410134341
9464771750
10203471073
11a4943913
1258185569
13332011b0
141d0473a1
1512ce2ad3
hexc20b8e1

203471073 has 24 divisors (see below), whose sum is σ = 326726400. Its totient is φ = 121171680.

The previous prime is 203471033. The next prime is 203471083. The reversal of 203471073 is 370174302.

It is not a de Polignac number, because 203471073 - 213 = 203462881 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (203471033) 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 23 ways as a sum of consecutive naturals, for example, 24423 + ... + 31676.

It is an arithmetic number, because the mean of its divisors is an integer number (13613600).

Almost surely, 2203471073 is an apocalyptic number.

It is an amenable number.

203471073 is a deficient number, since it is larger than the sum of its proper divisors (123255327).

203471073 is a wasteful number, since it uses less digits than its factorization.

203471073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56149 (or 56146 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 203471073 is about 14264.3286908287. The cubic root of 203471073 is about 588.1673218810.

The spelling of 203471073 in words is "two hundred three million, four hundred seventy-one thousand, seventy-three".

Divisors: 1 3 9 13 31 39 93 117 279 403 1209 3627 56099 168297 504891 729287 1739069 2187861 5217207 6563583 15651621 22607897 67823691 203471073