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30441005 = 572124249
BaseRepresentation
bin111010000011…
…1111000101101
32010021120012122
41310013320231
530243103010
63004242325
7516513200
oct164077055
963246178
1030441005
1116201861
12a2403a5
1363ca93a
144085937
152a14855
hex1d07e2d

30441005 has 12 divisors (see below), whose sum is σ = 42493500. Its totient is φ = 20873664.

The previous prime is 30441001. The next prime is 30441017. The reversal of 30441005 is 50014403.

It can be written as a sum of positive squares in 2 ways, for example, as 16883881 + 13557124 = 4109^2 + 3682^2 .

It is not a de Polignac number, because 30441005 - 22 = 30441001 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30441001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61880 + ... + 62369.

It is an arithmetic number, because the mean of its divisors is an integer number (3541125).

Almost surely, 230441005 is an apocalyptic number.

30441005 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30441005 is a deficient number, since it is larger than the sum of its proper divisors (12052495).

30441005 is a wasteful number, since it uses less digits than its factorization.

30441005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124268 (or 124261 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 30441005 is about 5517.3367669556. The cubic root of 30441005 is about 312.2384114897.

Adding to 30441005 its reverse (50014403), we get a palindrome (80455408).

The spelling of 30441005 in words is "thirty million, four hundred forty-one thousand, five".

Divisors: 1 5 7 35 49 245 124249 621245 869743 4348715 6088201 30441005