Base | Representation |
---|---|
bin | 1111100001011… |
… | …00100010110000 |
3 | 100002000010212201 |
4 | 13300230202300 |
5 | 231313041442 |
6 | 20530432544 |
7 | 3140505646 |
oct | 760544260 |
9 | 302003781 |
10 | 130205872 |
11 | 67552665 |
12 | 37732754 |
13 | 20c8b3c4 |
14 | 13415196 |
15 | b66e7b7 |
hex | 7c2c8b0 |
130205872 has 10 divisors (see below), whose sum is σ = 252273908. Its totient is φ = 65102928.
The previous prime is 130205869. The next prime is 130205897. The reversal of 130205872 is 278502031.
It is a self number, because there is not a number n which added to its sum of digits gives 130205872.
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4068918 + ... + 4068949.
Almost surely, 2130205872 is an apocalyptic number.
It is an amenable number.
130205872 is a deficient number, since it is larger than the sum of its proper divisors (122068036).
130205872 is an equidigital number, since it uses as much as digits as its factorization.
130205872 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8137875 (or 8137869 counting only the distinct ones).
The product of its (nonzero) digits is 3360, while the sum is 28.
The square root of 130205872 is about 11410.7787639582. The cubic root of 130205872 is about 506.8469726080.
The spelling of 130205872 in words is "one hundred thirty million, two hundred five thousand, eight hundred seventy-two".
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