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44400244213 = 133415403401
BaseRepresentation
bin101001010110011101…
…011111010111110101
311020121022220002210101
4221112131133113311
51211412430303323
632221443154101
73131164564063
oct512635372765
9136538802711
1044400244213
1117914864706
128731675931
13425789c770
142212b4b033
15124ce6cdad
hexa5675f5f5

44400244213 has 4 divisors (see below), whose sum is σ = 47815647628. Its totient is φ = 40984840800.

The previous prime is 44400244211. The next prime is 44400244243. The reversal of 44400244213 is 31244200444.

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 12830772529 + 31569471684 = 113273^2 + 177678^2 .

It is a cyclic number.

It is not a de Polignac number, because 44400244213 - 21 = 44400244211 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 (44400244211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1707701688 + ... + 1707701713.

It is an arithmetic number, because the mean of its divisors is an integer number (11953911907).

Almost surely, 244400244213 is an apocalyptic number.

It is an amenable number.

44400244213 is a deficient number, since it is larger than the sum of its proper divisors (3415403415).

44400244213 is a wasteful number, since it uses less digits than its factorization.

44400244213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3415403414.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 44400244213 its reverse (31244200444), we get a palindrome (75644444657).

The spelling of 44400244213 in words is "forty-four billion, four hundred million, two hundred forty-four thousand, two hundred thirteen".

Divisors: 1 13 3415403401 44400244213