Base | Representation |
---|---|
bin | 1111100100000… |
… | …01011010001001 |
3 | 100002122210201010 |
4 | 13302001122021 |
5 | 231410202411 |
6 | 20542114133 |
7 | 3143454252 |
oct | 762013211 |
9 | 302583633 |
10 | 130553481 |
11 | 6776a843 |
12 | 3787b949 |
13 | 210806a6 |
14 | 134a5b29 |
15 | b6dc7a6 |
hex | 7c81689 |
130553481 has 8 divisors (see below), whose sum is σ = 176925184. Its totient is φ = 85608720.
The previous prime is 130553473. The next prime is 130553491. The reversal of 130553481 is 184355031.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 130553481 - 23 = 130553473 is a prime.
It is a super-2 number, since 2×1305534812 = 34088422802434722, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (130553441) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356521 + ... + 356886.
It is an arithmetic number, because the mean of its divisors is an integer number (22115648).
Almost surely, 2130553481 is an apocalyptic number.
It is an amenable number.
130553481 is a deficient number, since it is larger than the sum of its proper divisors (46371703).
130553481 is an equidigital number, since it uses as much as digits as its factorization.
130553481 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 713471.
The product of its (nonzero) digits is 7200, while the sum is 30.
The square root of 130553481 is about 11426.0002187992. Note that the first 3 decimals coincide. The cubic root of 130553481 is about 507.2976128462.
The spelling of 130553481 in words is "one hundred thirty million, five hundred fifty-three thousand, four hundred eighty-one".
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