Base | Representation |
---|---|
bin | 111010000111… |
… | …0101101101001 |
3 | 2010022222120100 |
4 | 1310032231221 |
5 | 30300001334 |
6 | 3005020013 |
7 | 516660546 |
oct | 164165551 |
9 | 63288510 |
10 | 30468969 |
11 | 16220873 |
12 | a254609 |
13 | 640a59b |
14 | 4091bcd |
15 | 2a1cc99 |
hex | 1d0eb69 |
30468969 has 6 divisors (see below), whose sum is σ = 44010746. Its totient is φ = 20312640.
The previous prime is 30468967. The next prime is 30468979. The reversal of 30468969 is 96986403.
It can be written as a sum of positive squares in only one way, i.e., 24651225 + 5817744 = 4965^2 + 2412^2 .
It is not a de Polignac number, because 30468969 - 21 = 30468967 is a prime.
It is a super-2 number, since 2×304689692 = 1856716143845922, which contains 22 as substring.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (30468967) 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, 1692712 + ... + 1692729.
Almost surely, 230468969 is an apocalyptic number.
It is an amenable number.
30468969 is a deficient number, since it is larger than the sum of its proper divisors (13541777).
30468969 is a wasteful number, since it uses less digits than its factorization.
30468969 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3385447 (or 3385444 counting only the distinct ones).
The product of its (nonzero) digits is 279936, while the sum is 45.
The square root of 30468969 is about 5519.8703789129. The cubic root of 30468969 is about 312.3339926820. Note that the first 3 decimals are identical.
The spelling of 30468969 in words is "thirty million, four hundred sixty-eight thousand, nine hundred sixty-nine".
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