Base | Representation |
---|---|
bin | 1111100001011… |
… | …11111011100101 |
3 | 100002000211220200 |
4 | 13300233323211 |
5 | 231314012444 |
6 | 20531021113 |
7 | 3140564262 |
oct | 760577345 |
9 | 302024820 |
10 | 130219749 |
11 | 67562030 |
12 | 3773a799 |
13 | 20c9480a |
14 | 1341a269 |
15 | b673969 |
hex | 7c2fee5 |
130219749 has 48 divisors (see below), whose sum is σ = 218350080. Its totient is φ = 73954080.
The previous prime is 130219723. The next prime is 130219759. The reversal of 130219749 is 947912031.
It is not a de Polignac number, because 130219749 - 29 = 130219237 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130219709) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 200944 + ... + 201590.
It is an arithmetic number, because the mean of its divisors is an integer number (4548960).
Almost surely, 2130219749 is an apocalyptic number.
130219749 is a gapful number since it is divisible by the number (19) formed by its first and last digit.
It is an amenable number.
130219749 is a deficient number, since it is larger than the sum of its proper divisors (88130331).
130219749 is a wasteful number, since it uses less digits than its factorization.
130219749 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 790 (or 787 counting only the distinct ones).
The product of its (nonzero) digits is 13608, while the sum is 36.
The square root of 130219749 is about 11411.3868131792. The cubic root of 130219749 is about 506.8649781083.
The spelling of 130219749 in words is "one hundred thirty million, two hundred nineteen thousand, seven hundred forty-nine".
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