Base | Representation |
---|---|
bin | 10110100110000000… |
… | …10111011011010000 |
3 | 1011022100210000112120 |
4 | 23103000113123100 |
5 | 144320241214440 |
6 | 5323352254240 |
7 | 606410331615 |
oct | 132300273320 |
9 | 34270700476 |
10 | 12130023120 |
11 | 51650999a6 |
12 | 24263a1380 |
13 | 11b408a997 |
14 | 830dc650c |
15 | 4aeda5dd0 |
hex | 2d30176d0 |
12130023120 has 80 divisors (see below), whose sum is σ = 37613842560. Its totient is φ = 3233746432.
The previous prime is 12130023089. The next prime is 12130023127. The reversal of 12130023120 is 2132003121.
It is a tau number, because it is divible by the number of its divisors (80).
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 12130023120.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12130023127) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1406662 + ... + 1415258.
It is an arithmetic number, because the mean of its divisors is an integer number (470173032).
Almost surely, 212130023120 is an apocalyptic number.
12130023120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12130023120 is an abundant number, since it is smaller than the sum of its proper divisors (25483819440).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12130023120 is a wasteful number, since it uses less digits than its factorization.
12130023120 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14492 (or 14486 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 15.
Adding to 12130023120 its reverse (2132003121), we get a palindrome (14262026241).
The spelling of 12130023120 in words is "twelve billion, one hundred thirty million, twenty-three thousand, one hundred twenty".
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