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203104231 = 11167110563
BaseRepresentation
bin11000001101100…
…01111111100111
3112011011202121221
430012301333213
5403443313411
632053121211
75014233421
oct1406617747
9464152557
10203104231
11a4713240
1258029207
1333103225
141cd8d811
1512c6e071
hexc1b1fe7

203104231 has 8 divisors (see below), whose sum is σ = 222897024. Its totient is φ = 183532920.

The previous prime is 203104229. The next prime is 203104241. The reversal of 203104231 is 132401302.

It is a happy number.

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 203104231 - 21 = 203104229 is a prime.

It is a super-2 number, since 2×2031042312 = 82502657300202722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203104241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53445 + ... + 57118.

It is an arithmetic number, because the mean of its divisors is an integer number (27862128).

Almost surely, 2203104231 is an apocalyptic number.

203104231 is a deficient number, since it is larger than the sum of its proper divisors (19792793).

203104231 is a wasteful number, since it uses less digits than its factorization.

203104231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110741.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 203104231 is about 14251.4641703932. The cubic root of 203104231 is about 587.8136364288.

Adding to 203104231 its reverse (132401302), we get a palindrome (335505533).

The spelling of 203104231 in words is "two hundred three million, one hundred four thousand, two hundred thirty-one".

Divisors: 1 11 167 1837 110563 1216193 18464021 203104231