Base | Representation |
---|---|
bin | 111010000111… |
… | …1100101110000 |
3 | 2010100011111100 |
4 | 1310033211300 |
5 | 30300110220 |
6 | 3005044400 |
7 | 520004166 |
oct | 164174560 |
9 | 63304440 |
10 | 30472560 |
11 | 16223538 |
12 | a256700 |
13 | 640c101 |
14 | 4093236 |
15 | 2a1dd90 |
hex | 1d0f970 |
30472560 has 60 divisors (see below), whose sum is σ = 102339432. Its totient is φ = 8125824.
The previous prime is 30472549. The next prime is 30472567. The reversal of 30472560 is 6527403.
It is a happy number.
30472560 is a `hidden beast` number, since 30 + 4 + 72 + 560 = 666.
It is a tau number, because it is divible by the number of its divisors (60).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30472567) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20442 + ... + 21881.
Almost surely, 230472560 is an apocalyptic number.
30472560 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
30472560 is an abundant number, since it is smaller than the sum of its proper divisors (71866872).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30472560 is a wasteful number, since it uses less digits than its factorization.
30472560 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 42342 (or 42333 counting only the distinct ones).
The product of its (nonzero) digits is 5040, while the sum is 27.
The square root of 30472560 is about 5520.1956487067. The cubic root of 30472560 is about 312.3462625130.
Adding to 30472560 its reverse (6527403), we get a palindrome (36999963).
The spelling of 30472560 in words is "thirty million, four hundred seventy-two thousand, five hundred sixty".
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