Base | Representation |
---|---|
bin | 1111100000010… |
… | …01010010001000 |
3 | 100001201210202200 |
4 | 13300021102020 |
5 | 231243431243 |
6 | 20523400200 |
7 | 3136334616 |
oct | 760112210 |
9 | 301653680 |
10 | 130061448 |
11 | 67464100 |
12 | 37683060 |
13 | 20c3a74a |
14 | 133b86b6 |
15 | b641ad3 |
hex | 7c09488 |
130061448 has 72 divisors (see below), whose sum is σ = 387209550. Its totient is φ = 39409920.
The previous prime is 130061447. The next prime is 130061483. The reversal of 130061448 is 844160031.
130061448 is a `hidden beast` number, since 1 + 3 + 0 + 0 + 614 + 48 = 666.
It can be written as a sum of positive squares in only one way, i.e., 89075844 + 40985604 = 9438^2 + 6402^2 .
It is a tau number, because it is divible by the number of its divisors (72).
It is not an unprimeable number, because it can be changed into a prime (130061447) by changing a digit.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1248 + ... + 16176.
Almost surely, 2130061448 is an apocalyptic number.
130061448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 130061448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193604775).
130061448 is an abundant number, since it is smaller than the sum of its proper divisors (257148102).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130061448 is a wasteful number, since it uses less digits than its factorization.
130061448 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14963 (or 14945 counting only the distinct ones).
The product of its (nonzero) digits is 2304, while the sum is 27.
The square root of 130061448 is about 11404.4486056977. The cubic root of 130061448 is about 506.6595055159.
The spelling of 130061448 in words is "one hundred thirty million, sixty-one thousand, four hundred forty-eight".
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