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232130132 = 22136173181
BaseRepresentation
bin11011101011000…
…00011001010100
3121011210102200022
431311200121110
5433411131012
635011204312
75516034143
oct1565403124
9534712608
10232130132
1110a038893
12658a6698
1339126a10
1422b8775a
15155a4472
hexdd60654

232130132 has 24 divisors (see below), whose sum is σ = 444653832. Its totient is φ = 105379200.

The previous prime is 232130111. The next prime is 232130141. The reversal of 232130132 is 231031232.

232130132 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 12082576 + 220047556 = 3476^2 + 14834^2 .

232130132 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 232130132.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 33419 + ... + 39762.

It is an arithmetic number, because the mean of its divisors is an integer number (18527243).

Almost surely, 2232130132 is an apocalyptic number.

It is an amenable number.

232130132 is a deficient number, since it is larger than the sum of its proper divisors (212523700).

232130132 is a wasteful number, since it uses less digits than its factorization.

232130132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73259 (or 73257 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 232130132 is about 15235.8174050492. The cubic root of 232130132 is about 614.5782306556.

Adding to 232130132 its reverse (231031232), we get a palindrome (463161364).

The spelling of 232130132 in words is "two hundred thirty-two million, one hundred thirty thousand, one hundred thirty-two".

Divisors: 1 2 4 13 26 52 61 122 244 793 1586 3172 73181 146362 292724 951353 1902706 3805412 4464041 8928082 17856164 58032533 116065066 232130132