Base | Representation |
---|---|
bin | 1111100000011… |
… | …10001000001000 |
3 | 100001202210222111 |
4 | 13300032020020 |
5 | 231300100123 |
6 | 20524032104 |
7 | 3136446511 |
oct | 760161010 |
9 | 301683874 |
10 | 130081288 |
11 | 67477aa7 |
12 | 37692634 |
13 | 20c4679c |
14 | 133c1a08 |
15 | b64790d |
hex | 7c0e208 |
130081288 has 8 divisors (see below), whose sum is σ = 243902430. Its totient is φ = 65040640.
The previous prime is 130081249. The next prime is 130081313. The reversal of 130081288 is 882180031.
130081288 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in only one way, i.e., 72897444 + 57183844 = 8538^2 + 7562^2 .
It is a tau number, because it is divible by the number of its divisors (8).
It is a super-2 number, since 2×1300812882 = 33842282975477888, which contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8130073 + ... + 8130088.
Almost surely, 2130081288 is an apocalyptic number.
It is an amenable number.
130081288 is a deficient number, since it is larger than the sum of its proper divisors (113821142).
130081288 is a wasteful number, since it uses less digits than its factorization.
130081288 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16260167 (or 16260163 counting only the distinct ones).
The product of its (nonzero) digits is 3072, while the sum is 31.
The square root of 130081288 is about 11405.3184085320. The cubic root of 130081288 is about 506.6852667071.
The spelling of 130081288 in words is "one hundred thirty million, eighty-one thousand, two hundred eighty-eight".
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