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444231041144 = 23117379875339
BaseRepresentation
bin1100111011011100011…
…10111100000001111000
31120110122020002001210212
412131232032330001320
524234241121304034
6540024340530252
744044313355512
oct6355616740170
91513566061725
10444231041144
11161440929260
12721180b0988
1332b77147437
1417702666bb2
15b84ea922ce
hex676e3bc078

444231041144 has 64 divisors (see below), whose sum is σ = 932762304000. Its totient is φ = 196635928320.

The previous prime is 444231041141. The next prime is 444231041159. The reversal of 444231041144 is 441140132444.

It is a self number, because there is not a number n which added to its sum of digits gives 444231041144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444231041141) 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, 69827 + ... + 945165.

It is an arithmetic number, because the mean of its divisors is an integer number (14574411000).

Almost surely, 2444231041144 is an apocalyptic number.

444231041144 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 444231041144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (466381152000).

444231041144 is an abundant number, since it is smaller than the sum of its proper divisors (488531262856).

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

444231041144 is a wasteful number, since it uses less digits than its factorization.

444231041144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875508 (or 875504 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 444231041144 its reverse (441140132444), we get a palindrome (885371173588).

The spelling of 444231041144 in words is "four hundred forty-four billion, two hundred thirty-one million, forty-one thousand, one hundred forty-four".

Divisors: 1 2 4 8 11 22 44 73 79 88 146 158 292 316 584 632 803 869 1606 1738 3212 3476 5767 6424 6952 11534 23068 46136 63437 126874 253748 507496 875339 1750678 3501356 7002712 9628729 19257458 38514916 63899747 69151781 77029832 127799494 138303562 255598988 276607124 511197976 553214248 702897217 760669591 1405794434 1521339182 2811588868 3042678364 5048080013 5623177736 6085356728 10096160026 20192320052 40384640104 55528880143 111057760286 222115520572 444231041144