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44207893 = 109405577
BaseRepresentation
bin1010100010100…
…0111100010101
310002011222211101
42220220330111
542304123033
64215310101
71044521662
oct250507425
9102158741
1044207893
1122a55054
121297b331
13920ac22
145c2aa69
153d3397d
hex2a28f15

44207893 has 4 divisors (see below), whose sum is σ = 44613580. Its totient is φ = 43802208.

The previous prime is 44207887. The next prime is 44207897. The reversal of 44207893 is 39870244.

It is a happy number.

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 19377604 + 24830289 = 4402^2 + 4983^2 .

It is a cyclic number.

It is not a de Polignac number, because 44207893 - 29 = 44207381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44207897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202680 + ... + 202897.

It is an arithmetic number, because the mean of its divisors is an integer number (11153395).

Almost surely, 244207893 is an apocalyptic number.

It is an amenable number.

44207893 is a deficient number, since it is larger than the sum of its proper divisors (405687).

44207893 is a wasteful number, since it uses less digits than its factorization.

44207893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405686.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 44207893 is about 6648.9016386167. The cubic root of 44207893 is about 353.5899712772.

The spelling of 44207893 in words is "forty-four million, two hundred seven thousand, eight hundred ninety-three".

Divisors: 1 109 405577 44207893