Base | Representation |
---|---|
bin | 11100011101001010… |
… | …011011011101100101 |
3 | 2220212100211021012221 |
4 | 130131022123131211 |
5 | 1000033313404021 |
6 | 22011503112341 |
7 | 2131105043146 |
oct | 343512333545 |
9 | 86770737187 |
10 | 30554044261 |
11 | 11a59a63754 |
12 | 5b085a26b1 |
13 | 2b5c0c0340 |
14 | 169bc6bacd |
15 | bdc5ba241 |
hex | 71d29b765 |
30554044261 has 16 divisors (see below), whose sum is σ = 35442570240. Its totient is φ = 26107234560.
The previous prime is 30554044247. The next prime is 30554044271. The reversal of 30554044261 is 16244045503.
It is a cyclic number.
It is not a de Polignac number, because 30554044261 - 215 = 30554011493 is a prime.
It is a super-2 number, since 2×305540442612 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30554044201) 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, 1638916 + ... + 1657453.
It is an arithmetic number, because the mean of its divisors is an integer number (2215160640).
Almost surely, 230554044261 is an apocalyptic number.
30554044261 is a gapful number since it is divisible by the number (31) formed by its first and last digit.
It is an amenable number.
30554044261 is a deficient number, since it is larger than the sum of its proper divisors (4888525979).
30554044261 is a wasteful number, since it uses less digits than its factorization.
30554044261 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3296436.
The product of its (nonzero) digits is 57600, while the sum is 34.
Adding to 30554044261 its reverse (16244045503), we get a palindrome (46798089764).
The spelling of 30554044261 in words is "thirty billion, five hundred fifty-four million, forty-four thousand, two hundred sixty-one".
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