Base | Representation |
---|---|
bin | 111011000100… |
… | …0110110010010 |
3 | 2011021101210200 |
4 | 1312020312102 |
5 | 30412003414 |
6 | 3023440030 |
7 | 524143212 |
oct | 166106622 |
9 | 64241720 |
10 | 30969234 |
11 | 1653270a |
12 | a456016 |
13 | 65541ba |
14 | 4182242 |
15 | 2abb109 |
hex | 1d88d92 |
30969234 has 12 divisors (see below), whose sum is σ = 67100046. Its totient is φ = 10323072.
The previous prime is 30969233. The next prime is 30969283. The reversal of 30969234 is 43296903.
It is a happy number.
It can be written as a sum of positive squares in only one way, i.e., 30969225 + 9 = 5565^2 + 3^2 .
It is an alternating number because its digits alternate between odd and even.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (30969233) 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, 860239 + ... + 860274.
Almost surely, 230969234 is an apocalyptic number.
30969234 is an abundant number, since it is smaller than the sum of its proper divisors (36130812).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30969234 is a wasteful number, since it uses less digits than its factorization.
30969234 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1720521 (or 1720518 counting only the distinct ones).
The product of its (nonzero) digits is 34992, while the sum is 36.
The square root of 30969234 is about 5565.0008086253. Note that the first 3 decimals coincide. The cubic root of 30969234 is about 314.0341085644.
The spelling of 30969234 in words is "thirty million, nine hundred sixty-nine thousand, two hundred thirty-four".
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