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203020132 = 22721317907
BaseRepresentation
bin11000001100111…
…01011101100100
3112011000111021011
430012131131210
5403433121012
632051232004
75013433300
oct1406353544
9464014234
10203020132
11a4666037
1257ba8604
13330a3b73
141cd6ad00
1512c541a7
hexc19d764

203020132 has 36 divisors (see below), whose sum is σ = 416498544. Its totient is φ = 86333520.

The previous prime is 203020091. The next prime is 203020133. The reversal of 203020132 is 231020302.

It is a happy number.

203020132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (203020133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21723 + ... + 29629.

It is an arithmetic number, because the mean of its divisors is an integer number (11569404).

Almost surely, 2203020132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203020132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208249272).

203020132 is an abundant number, since it is smaller than the sum of its proper divisors (213478412).

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

203020132 is a wasteful number, since it uses less digits than its factorization.

203020132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8056 (or 8047 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 203020132 is about 14248.5133259579. The cubic root of 203020132 is about 587.7324935866.

Adding to 203020132 its reverse (231020302), we get a palindrome (434040434).

The spelling of 203020132 in words is "two hundred three million, twenty thousand, one hundred thirty-two".

Divisors: 1 2 4 7 14 28 49 98 131 196 262 524 917 1834 3668 6419 7907 12838 15814 25676 31628 55349 110698 221396 387443 774886 1035817 1549772 2071634 4143268 7250719 14501438 29002876 50755033 101510066 203020132