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44254013 = 149329641
BaseRepresentation
bin1010100011010…
…0001100111101
310002021100002112
42220310030331
542312112023
64220303405
71045103306
oct250641475
9102240075
1044254013
1122a86771
12129a1b65
139225c0b
145c3d7ad
153d42478
hex2a3433d

44254013 has 4 divisors (see below), whose sum is σ = 44285148. Its totient is φ = 44222880.

The previous prime is 44253977. The next prime is 44254031. The reversal of 44254013 is 31045244.

44254013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40424164 + 3829849 = 6358^2 + 1957^2 .

It is a cyclic number.

It is not a de Polignac number, because 44254013 - 26 = 44253949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 44254013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44254073) 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 3 ways as a sum of consecutive naturals, for example, 13328 + ... + 16313.

It is an arithmetic number, because the mean of its divisors is an integer number (11071287).

Almost surely, 244254013 is an apocalyptic number.

It is an amenable number.

44254013 is a deficient number, since it is larger than the sum of its proper divisors (31135).

44254013 is a wasteful number, since it uses less digits than its factorization.

44254013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31134.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 44254013 is about 6652.3689765376. The cubic root of 44254013 is about 353.7128897629.

Adding to 44254013 its reverse (31045244), we get a palindrome (75299257).

The spelling of 44254013 in words is "forty-four million, two hundred fifty-four thousand, thirteen".

Divisors: 1 1493 29641 44254013