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12132400230 = 2325134804447
BaseRepresentation
bin10110100110010010…
…11011110001100110
31011022112020210022200
423103021123301212
5144321343301410
65323515235330
7606436462146
oct132311336146
934275223280
1012132400230
115166472955
122427148b46
1311b4710962
14831444926
154b01c53c0
hex2d325bc66

12132400230 has 24 divisors (see below), whose sum is σ = 31544240832. Its totient is φ = 3235306704.

The previous prime is 12132400229. The next prime is 12132400237. The reversal of 12132400230 is 3200423121.

12132400230 is a `hidden beast` number, since 1 + 2 + 1 + 32 + 400 + 230 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12132400237) 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, 67402134 + ... + 67402313.

It is an arithmetic number, because the mean of its divisors is an integer number (1314343368).

Almost surely, 212132400230 is an apocalyptic number.

12132400230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12132400230 is an abundant number, since it is smaller than the sum of its proper divisors (19411840602).

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

12132400230 is a wasteful number, since it uses less digits than its factorization.

12132400230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134804460 (or 134804457 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 12132400230 its reverse (3200423121), we get a palindrome (15332823351).

The spelling of 12132400230 in words is "twelve billion, one hundred thirty-two million, four hundred thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 134804447 269608894 404413341 674022235 808826682 1213240023 1348044470 2022066705 2426480046 4044133410 6066200115 12132400230