Base | Representation |
---|---|
bin | 111010000101… |
… | …0101001111001 |
3 | 2010022010202122 |
4 | 1310022221321 |
5 | 30243433340 |
6 | 3004411025 |
7 | 516561230 |
oct | 164125171 |
9 | 63263678 |
10 | 30452345 |
11 | 1620a330 |
12 | a246a75 |
13 | 6402b51 |
14 | 4089b17 |
15 | 2a17db5 |
hex | 1d0aa79 |
30452345 has 64 divisors (see below), whose sum is σ = 50319360. Its totient is φ = 17107200.
The previous prime is 30452339. The next prime is 30452347. The reversal of 30452345 is 54325403.
It is not a de Polignac number, because 30452345 - 28 = 30452089 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (30452347) 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 63 ways as a sum of consecutive naturals, for example, 168155 + ... + 168335.
It is an arithmetic number, because the mean of its divisors is an integer number (786240).
Almost surely, 230452345 is an apocalyptic number.
30452345 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
It is an amenable number.
30452345 is a deficient number, since it is larger than the sum of its proper divisors (19867015).
30452345 is a wasteful number, since it uses less digits than its factorization.
30452345 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 246.
The product of its (nonzero) digits is 7200, while the sum is 26.
The square root of 30452345 is about 5518.3643409982. The cubic root of 30452345 is about 312.2771787600.
Adding to 30452345 its reverse (54325403), we get a palindrome (84777748).
The spelling of 30452345 in words is "thirty million, four hundred fifty-two thousand, three hundred forty-five".
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