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44400000461 = 1719713257689
BaseRepresentation
bin101001010110011100…
…100011110111001101
311020121022102201102112
4221112130203313031
51211412400003321
632221434033405
73131162530325
oct512634436715
9136538381375
1044400000461
1117914708563
128731578865
13425781582b
142212ac6285
15124ce20a5b
hexa56723dcd

44400000461 has 8 divisors (see below), whose sum is σ = 47250407160. Its totient is φ = 41576109568.

The previous prime is 44400000409. The next prime is 44400000497. The reversal of 44400000461 is 16400000444.

It can be written as a sum of positive squares in 4 ways, for example, as 16182384100 + 28217616361 = 127210^2 + 167981^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 44400000461 - 230 = 43326258637 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44400000961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6625496 + ... + 6632193.

It is an arithmetic number, because the mean of its divisors is an integer number (5906300895).

Almost surely, 244400000461 is an apocalyptic number.

It is an amenable number.

44400000461 is a deficient number, since it is larger than the sum of its proper divisors (2850406699).

44400000461 is a wasteful number, since it uses less digits than its factorization.

44400000461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13257903.

The product of its (nonzero) digits is 1536, while the sum is 23.

The spelling of 44400000461 in words is "forty-four billion, four hundred million, four hundred sixty-one", and thus it is an aban number.

Divisors: 1 17 197 3349 13257689 225380713 2611764733 44400000461