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203023132 = 221319673067
BaseRepresentation
bin11000001100111…
…10001100011100
3112011000122101021
430012132030130
5403433220012
632051253524
75013445114
oct1406361434
9464018337
10203023132
11a4668314
1257baa2a4
13330a5340
141cd6c044
1512c55007
hexc19e31c

203023132 has 48 divisors (see below), whose sum is σ = 408903040. Its totient is φ = 87417792.

The previous prime is 203023109. The next prime is 203023133. The reversal of 203023132 is 231320302.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203023133) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 64663 + ... + 67729.

Almost surely, 2203023132 is an apocalyptic number.

It is an amenable number.

203023132 is an abundant number, since it is smaller than the sum of its proper divisors (205879908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203023132 is a wasteful number, since it uses less digits than its factorization.

203023132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3170 (or 3168 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 203023132 is about 14248.6185997099. The cubic root of 203023132 is about 587.7353885192.

Adding to 203023132 its reverse (231320302), we get a palindrome (434343434).

The spelling of 203023132 in words is "two hundred three million, twenty-three thousand, one hundred thirty-two".

Divisors: 1 2 4 13 19 26 38 52 67 76 134 247 268 494 871 988 1273 1742 2546 3067 3484 5092 6134 12268 16549 33098 39871 58273 66196 79742 116546 159484 205489 233092 410978 757549 821956 1515098 2671357 3030196 3904291 5342714 7808582 10685428 15617164 50755783 101511566 203023132