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44401243220 = 22544318232749
BaseRepresentation
bin101001010110100001…
…010011010001010100
311020121101202212011122
4221112201103101110
51211413204240340
632221520423112
73131206224455
oct512641232124
9136541685148
1044401243220
1117915387234
128731a77a98
134257b5c3a9
142212d2b12c
15124d0b8db5
hexa56853454

44401243220 has 48 divisors (see below), whose sum is σ = 93538368000. Its totient is φ = 17704242816.

The previous prime is 44401243219. The next prime is 44401243223. The reversal of 44401243220 is 2234210444.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 44401243220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44401243223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16150406 + ... + 16153154.

It is an arithmetic number, because the mean of its divisors is an integer number (1948716000).

Almost surely, 244401243220 is an apocalyptic number.

It is an amenable number.

44401243220 is an abundant number, since it is smaller than the sum of its proper divisors (49137124780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

44401243220 is a wasteful number, since it uses less digits than its factorization.

44401243220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5024 (or 5022 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 44401243220 its reverse (2234210444), we get a palindrome (46635453664).

The spelling of 44401243220 in words is "forty-four billion, four hundred one million, two hundred forty-three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 443 886 1772 1823 2215 2749 3646 4430 5498 7292 8860 9115 10996 13745 18230 27490 36460 54980 807589 1217807 1615178 2435614 3230356 4037945 4871228 5011427 6089035 8075890 10022854 12178070 16151780 20045708 24356140 25057135 50114270 100228540 2220062161 4440124322 8880248644 11100310805 22200621610 44401243220