Base | Representation |
---|---|
bin | 10110100110010010… |
… | …11011110001100110 |
3 | 1011022112020210022200 |
4 | 23103021123301212 |
5 | 144321343301410 |
6 | 5323515235330 |
7 | 606436462146 |
oct | 132311336146 |
9 | 34275223280 |
10 | 12132400230 |
11 | 5166472955 |
12 | 2427148b46 |
13 | 11b4710962 |
14 | 831444926 |
15 | 4b01c53c0 |
hex | 2d325bc66 |
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".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •