Base | Representation |
---|---|
bin | 1111100001101… |
… | …10101101111000 |
3 | 100002002021001010 |
4 | 13300312231320 |
5 | 231320410134 |
6 | 20531353520 |
7 | 3141041310 |
oct | 760665570 |
9 | 302067033 |
10 | 130247544 |
11 | 675809a9 |
12 | 377528a0 |
13 | 20ca436b |
14 | 13426440 |
15 | b67bce9 |
hex | 7c36b78 |
130247544 has 64 divisors (see below), whose sum is σ = 374918400. Its totient is φ = 36935424.
The previous prime is 130247543. The next prime is 130247563. The reversal of 130247544 is 445742031.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130247543) 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, 20187 + ... + 25845.
It is an arithmetic number, because the mean of its divisors is an integer number (5858100).
Almost surely, 2130247544 is an apocalyptic number.
130247544 is a gapful number since it is divisible by the number (14) 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 130247544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187459200).
130247544 is an abundant number, since it is smaller than the sum of its proper divisors (244670856).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130247544 is a wasteful number, since it uses less digits than its factorization.
130247544 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5812 (or 5808 counting only the distinct ones).
The product of its (nonzero) digits is 13440, while the sum is 30.
The square root of 130247544 is about 11412.6046106925. The cubic root of 130247544 is about 506.9010384599.
Adding to 130247544 its reverse (445742031), we get a palindrome (575989575).
The spelling of 130247544 in words is "one hundred thirty million, two hundred forty-seven thousand, five hundred forty-four".
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