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44072481 = 314690827
BaseRepresentation
bin1010100000011…
…1111000100001
310001221010002010
42220013320201
542240304411
64212343133
71043416125
oct250077041
9101833063
1044072481
1122972342
1212914aa9
1391913bb
145bd3585
153d087a6
hex2a07e21

44072481 has 4 divisors (see below), whose sum is σ = 58763312. Its totient is φ = 29381652.

The previous prime is 44072471. The next prime is 44072491. The reversal of 44072481 is 18427044.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (44072471) and next prime (44072491).

It is not a de Polignac number, because 44072481 - 29 = 44071969 is a prime.

It is a super-2 number, since 2×440724812 = 3884767162990722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44072401) 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, 7345411 + ... + 7345416.

It is an arithmetic number, because the mean of its divisors is an integer number (14690828).

Almost surely, 244072481 is an apocalyptic number.

It is an amenable number.

44072481 is a deficient number, since it is larger than the sum of its proper divisors (14690831).

44072481 is a wasteful number, since it uses less digits than its factorization.

44072481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14690830.

The product of its (nonzero) digits is 7168, while the sum is 30.

The square root of 44072481 is about 6638.7107935201. The cubic root of 44072481 is about 353.2285780789.

The spelling of 44072481 in words is "forty-four million, seventy-two thousand, four hundred eighty-one".

Divisors: 1 3 14690827 44072481