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30561441 = 341419593
BaseRepresentation
bin111010010010…
…1010010100001
32010111200102020
41310211102201
530310431231
63011012053
7520524261
oct164452241
963450366
1030561441
1116284299
12a29a029
1364406c1
1440b77a1
152a3a396
hex1d254a1

30561441 has 16 divisors (see below), whose sum is σ = 41912640. Its totient is φ = 19796480.

The previous prime is 30561431. The next prime is 30561467. The reversal of 30561441 is 14416503.

It is a cyclic number.

It is not a de Polignac number, because 30561441 - 213 = 30553249 is a prime.

It is a super-3 number, since 3×305614413 (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (30561431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51241 + ... + 51833.

It is an arithmetic number, because the mean of its divisors is an integer number (2619540).

Almost surely, 230561441 is an apocalyptic number.

It is an amenable number.

30561441 is a deficient number, since it is larger than the sum of its proper divisors (11351199).

30561441 is a wasteful number, since it uses less digits than its factorization.

30561441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 30561441 is about 5528.2403167735. The cubic root of 30561441 is about 312.6496469404.

Adding to 30561441 its reverse (14416503), we get a palindrome (44977944).

The spelling of 30561441 in words is "thirty million, five hundred sixty-one thousand, four hundred forty-one".

Divisors: 1 3 41 123 419 593 1257 1779 17179 24313 51537 72939 248467 745401 10187147 30561441