Base | Representation |
---|---|
bin | 11100010101000110… |
… | …101100111010101001 |
3 | 2220111221102122210200 |
4 | 130111012230322221 |
5 | 444244211140244 |
6 | 21550233302413 |
7 | 2124543645162 |
oct | 342506547251 |
9 | 86457378720 |
10 | 30418849449 |
11 | 1199a7138aa |
12 | 5a8b264a09 |
13 | 2b3a0a6201 |
14 | 1687d18769 |
15 | bd07b2669 |
hex | 7151acea9 |
30418849449 has 6 divisors (see below), whose sum is σ = 43938338106. Its totient is φ = 20279232960.
The previous prime is 30418849441. The next prime is 30418849451. The reversal of 30418849449 is 94494881403.
30418849449 is a `hidden beast` number, since 30 + 4 + 1 + 88 + 494 + 49 = 666.
It can be written as a sum of positive squares in only one way, i.e., 26554983849 + 3863865600 = 162957^2 + 62160^2 .
It is not a de Polignac number, because 30418849449 - 23 = 30418849441 is a prime.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 30418849395 and 30418849404.
It is not an unprimeable number, because it can be changed into a prime (30418849441) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1689936072 + ... + 1689936089.
It is an arithmetic number, because the mean of its divisors is an integer number (7323056351).
Almost surely, 230418849449 is an apocalyptic number.
It is an amenable number.
30418849449 is a deficient number, since it is larger than the sum of its proper divisors (13519488657).
30418849449 is a wasteful number, since it uses less digits than its factorization.
30418849449 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3379872167 (or 3379872164 counting only the distinct ones).
The product of its (nonzero) digits is 3981312, while the sum is 54.
The spelling of 30418849449 in words is "thirty billion, four hundred eighteen million, eight hundred forty-nine thousand, four hundred forty-nine".
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