Base | Representation |
---|---|
bin | 111101001101010011… |
… | …1010101010011101000 |
3 | 110120021111020022100020 |
4 | 1322122213111103220 |
5 | 4123143403133112 |
6 | 140214544040440 |
7 | 12332165146521 |
oct | 1723247252350 |
9 | 416244208306 |
10 | 131443021032 |
11 | 508211821a4 |
12 | 21584003120 |
13 | c519b36c2b |
14 | 650cdb9848 |
15 | 36448a548c |
hex | 1e9a9d54e8 |
131443021032 has 32 divisors (see below), whose sum is σ = 328643988000. Its totient is φ = 43809482304.
The previous prime is 131443021019. The next prime is 131443021037. The reversal of 131443021032 is 230120344131.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (24).
It is a junction number, because it is equal to n+sod(n) for n = 131443020993 and 131443021011.
It is not an unprimeable number, because it can be changed into a prime (131443021037) 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, 79282 + ... + 518817.
It is an arithmetic number, because the mean of its divisors is an integer number (10270124625).
Almost surely, 2131443021032 is an apocalyptic number.
131443021032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
131443021032 is an abundant number, since it is smaller than the sum of its proper divisors (197200966968).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131443021032 is a wasteful number, since it uses less digits than its factorization.
131443021032 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 607265 (or 607261 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 24.
Adding to 131443021032 its reverse (230120344131), we get a palindrome (361563365163).
The spelling of 131443021032 in words is "one hundred thirty-one billion, four hundred forty-three million, twenty-one thousand, thirty-two".
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