Base | Representation |
---|---|
bin | 11000011101011000… |
… | …10101001101100100 |
3 | 1020220011001110001012 |
4 | 30032230111031210 |
5 | 203343114413012 |
6 | 10011003321352 |
7 | 643260044030 |
oct | 141654251544 |
9 | 36804043035 |
10 | 13131404132 |
11 | 5629376310 |
12 | 2665820258 |
13 | 131368c622 |
14 | 8c7db31c0 |
15 | 51cc5b622 |
hex | 30eb15364 |
13131404132 has 48 divisors (see below), whose sum is σ = 28712527872. Its totient is φ = 5105026080.
The previous prime is 13131404123. The next prime is 13131404149. The reversal of 13131404132 is 23140413131.
It is a junction number, because it is equal to n+sod(n) for n = 13131404098 and 13131404107.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96563 + ... + 188645.
It is an arithmetic number, because the mean of its divisors is an integer number (598177664).
Almost surely, 213131404132 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 13131404132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14356263936).
13131404132 is an abundant number, since it is smaller than the sum of its proper divisors (15581123740).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13131404132 is a wasteful number, since it uses less digits than its factorization.
13131404132 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 92568 (or 92566 counting only the distinct ones).
The product of its (nonzero) digits is 864, while the sum is 23.
Adding to 13131404132 its reverse (23140413131), we get a palindrome (36271817263).
The spelling of 13131404132 in words is "thirteen billion, one hundred thirty-one million, four hundred four thousand, one hundred thirty-two".
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