Base | Representation |
---|---|
bin | 111010000101… |
… | …0010010100001 |
3 | 2010022001201020 |
4 | 1310022102201 |
5 | 30243411344 |
6 | 3004400053 |
7 | 516553662 |
oct | 164122241 |
9 | 63261636 |
10 | 30450849 |
11 | 162091a0 |
12 | a246029 |
13 | 6402270 |
14 | 4089369 |
15 | 2a17719 |
hex | 1d0a4a1 |
30450849 has 16 divisors (see below), whose sum is σ = 47699904. Its totient is φ = 17035200.
The previous prime is 30450803. The next prime is 30450857. The reversal of 30450849 is 94805403.
It is not a de Polignac number, because 30450849 - 217 = 30319777 is a prime.
It is a super-3 number, since 3×304508493 (a number of 23 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (33).
It is not an unprimeable number, because it can be changed into a prime (30450949) 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, 35062 + ... + 35919.
It is an arithmetic number, because the mean of its divisors is an integer number (2981244).
Almost surely, 230450849 is an apocalyptic number.
30450849 is a gapful number since it is divisible by the number (39) formed by its first and last digit.
It is an amenable number.
30450849 is a deficient number, since it is larger than the sum of its proper divisors (17249055).
30450849 is a wasteful number, since it uses less digits than its factorization.
30450849 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 71008.
The product of its (nonzero) digits is 17280, while the sum is 33.
The square root of 30450849 is about 5518.2287919223. The cubic root of 30450849 is about 312.2720650398.
The spelling of 30450849 in words is "thirty million, four hundred fifty thousand, eight hundred forty-nine".
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