Base | Representation |
---|---|
bin | 1111100011001… |
… | …01010110010100 |
3 | 100002102222001100 |
4 | 13301211112110 |
5 | 231343013143 |
6 | 20535430100 |
7 | 3142465212 |
oct | 761452624 |
9 | 302388040 |
10 | 130438548 |
11 | 676a1459 |
12 | 37825330 |
13 | 21040296 |
14 | 13475cb2 |
15 | b6b86d3 |
hex | 7c65594 |
130438548 has 72 divisors (see below), whose sum is σ = 343062720. Its totient is φ = 41754240.
The previous prime is 130438547. The next prime is 130438577. The reversal of 130438548 is 845834031.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130438547) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98233 + ... + 99551.
It is an arithmetic number, because the mean of its divisors is an integer number (4764760).
Almost surely, 2130438548 is an apocalyptic number.
130438548 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 130438548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171531360).
130438548 is an abundant number, since it is smaller than the sum of its proper divisors (212624172).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130438548 is a wasteful number, since it uses less digits than its factorization.
130438548 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1437 (or 1432 counting only the distinct ones).
The product of its (nonzero) digits is 46080, while the sum is 36.
The square root of 130438548 is about 11420.9696611102. The cubic root of 130438548 is about 507.1487023405.
The spelling of 130438548 in words is "one hundred thirty million, four hundred thirty-eight thousand, five hundred forty-eight".
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