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203131132 = 22389130547
BaseRepresentation
bin11000001101110…
…00100011111100
3112011020010112021
430012320203330
5404000144012
632053445524
75014405021
oct1406704374
9464203467
10203131132
11a4731476
12580408a4
1333112549
141cd99548
1512c77007
hexc1b88fc

203131132 has 12 divisors (see below), whose sum is σ = 356396040. Its totient is φ = 101303696.

The previous prime is 203131121. The next prime is 203131151. The reversal of 203131132 is 231131302.

203131132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63718 + ... + 66829.

It is an arithmetic number, because the mean of its divisors is an integer number (29699670).

Almost surely, 2203131132 is an apocalyptic number.

It is an amenable number.

203131132 is a deficient number, since it is larger than the sum of its proper divisors (153264908).

203131132 is a wasteful number, since it uses less digits than its factorization.

203131132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130940 (or 130938 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 203131132 is about 14252.4079369067. The cubic root of 203131132 is about 587.8395871053.

Adding to 203131132 its reverse (231131302), we get a palindrome (434262434).

The spelling of 203131132 in words is "two hundred three million, one hundred thirty-one thousand, one hundred thirty-two".

Divisors: 1 2 4 389 778 1556 130547 261094 522188 50782783 101565566 203131132