Base | Representation |
---|---|
bin | 11100101100101… |
… | …101001100001001 |
3 | 1020112222210102110 |
4 | 130230231030021 |
5 | 1441224401411 |
6 | 115435452533 |
7 | 14634345045 |
oct | 3454551411 |
9 | 1215883373 |
10 | 481481481 |
11 | 227869188 |
12 | 1152b7149 |
13 | 789a00b0 |
14 | 47d35025 |
15 | 2c40b2a6 |
hex | 1cb2d309 |
481481481 has 16 divisors (see below), whose sum is σ = 710045504. Its totient is φ = 288287424.
The previous prime is 481481453. The next prime is 481481509. The reversal of 481481481 is 184184184.
It is an interprime number because it is at equal distance from previous prime (481481453) and next prime (481481509).
It is not a de Polignac number, because 481481481 - 27 = 481481353 is a prime.
It is a super-2 number, since 2×4814814812 = 463648833091906722, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (39).
It is a Duffinian number.
481481481 is a modest number, since divided by 481481 gives 481 as remainder.
It is not an unprimeable number, because it can be changed into a prime (481481681) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165391 + ... + 168276.
It is an arithmetic number, because the mean of its divisors is an integer number (44377844).
Almost surely, 2481481481 is an apocalyptic number.
It is an amenable number.
481481481 is a deficient number, since it is larger than the sum of its proper divisors (228564023).
481481481 is a wasteful number, since it uses less digits than its factorization.
481481481 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 333720.
The product of its digits is 32768, while the sum is 39.
The square root of 481481481 is about 21942.6862758414. The cubic root of 481481481 is about 783.7782289790.
The spelling of 481481481 in words is "four hundred eighty-one million, four hundred eighty-one thousand, four hundred eighty-one".
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