Base | Representation |
---|---|
bin | 111101001111100110… |
… | …1111100101001100000 |
3 | 110120110212120002000102 |
4 | 1322133031330221200 |
5 | 4123323141040022 |
6 | 140230343241532 |
7 | 12334123462265 |
oct | 1723715745140 |
9 | 416425502012 |
10 | 131520252512 |
11 | 50860832370 |
12 | 215a5a492a8 |
13 | c52cb3812c |
14 | 651936126c |
15 | 364b55da92 |
hex | 1e9f37ca60 |
131520252512 has 48 divisors (see below), whose sum is σ = 282556657152. Its totient is φ = 59763515520.
The previous prime is 131520252511. The next prime is 131520252529. The reversal of 131520252512 is 215252025131.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131520252511) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1120853 + ... + 1232619.
It is an arithmetic number, because the mean of its divisors is an integer number (5886597024).
Almost surely, 2131520252512 is an apocalyptic number.
It is an amenable number.
131520252512 is an abundant number, since it is smaller than the sum of its proper divisors (151036404640).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131520252512 is a wasteful number, since it uses less digits than its factorization.
131520252512 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 115131 (or 115123 counting only the distinct ones).
The product of its (nonzero) digits is 6000, while the sum is 29.
Adding to 131520252512 its reverse (215252025131), we get a palindrome (346772277643).
The spelling of 131520252512 in words is "one hundred thirty-one billion, five hundred twenty million, two hundred fifty-two thousand, five hundred twelve".
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