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30454044 = 2232537837
BaseRepresentation
bin111010000101…
…1000100011100
32010022020002120
41310023010130
530244012134
63004422540
7516566205
oct164130434
963266076
1030454044
1116210635
12a247a50
13640385a
14408a5ac
152a18649
hex1d0b11c

30454044 has 12 divisors (see below), whose sum is σ = 71059464. Its totient is φ = 10151344.

The previous prime is 30454043. The next prime is 30454051. The reversal of 30454044 is 44045403.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30454043) 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 3 ways as a sum of consecutive naturals, for example, 1268907 + ... + 1268930.

It is an arithmetic number, because the mean of its divisors is an integer number (5921622).

Almost surely, 230454044 is an apocalyptic number.

It is an amenable number.

30454044 is an abundant number, since it is smaller than the sum of its proper divisors (40605420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30454044 is a wasteful number, since it uses less digits than its factorization.

30454044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2537844 (or 2537842 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 30454044 is about 5518.5182793935. The cubic root of 30454044 is about 312.2829861842.

Adding to 30454044 its reverse (44045403), we get a palindrome (74499447).

The spelling of 30454044 in words is "thirty million, four hundred fifty-four thousand, forty-four".

Divisors: 1 2 3 4 6 12 2537837 5075674 7613511 10151348 15227022 30454044