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20043211244 = 22737137283499
BaseRepresentation
bin10010101010101010…
…110010000111101100
31220201211211121221012
4102222222302013230
5312022030224434
613112511324352
71306455325130
oct225252620754
956654747835
1020043211244
1185559632a1
123a745206b8
131b75627014
14d81d333c0
157c49543ce
hex4aaab21ec

20043211244 has 96 divisors (see below), whose sum is σ = 41700288000. Its totient is φ = 8250895872.

The previous prime is 20043211229. The next prime is 20043211249. The reversal of 20043211244 is 44211234002.

It is not an unprimeable number, because it can be changed into a prime (20043211249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40166507 + ... + 40167005.

It is an arithmetic number, because the mean of its divisors is an integer number (434378000).

Almost surely, 220043211244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20043211244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20850144000).

20043211244 is an abundant number, since it is smaller than the sum of its proper divisors (21657076756).

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

20043211244 is a wasteful number, since it uses less digits than its factorization.

20043211244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967 (or 965 counting only the distinct ones).

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

Adding to 20043211244 its reverse (44211234002), we get a palindrome (64254445246).

The spelling of 20043211244 in words is "twenty billion, forty-three million, two hundred eleven thousand, two hundred forty-four".

Divisors: 1 2 4 7 14 28 37 74 137 148 259 274 283 499 518 548 566 959 998 1036 1132 1918 1981 1996 3493 3836 3962 5069 6986 7924 10138 10471 13972 18463 20276 20942 35483 36926 38771 41884 68363 70966 73297 73852 77542 129241 136726 141217 141932 146594 155084 258482 271397 273452 282434 293188 478541 516964 542794 564868 957082 988519 1085588 1434527 1914164 1977038 2529431 2869054 3954076 5058862 5225029 5738108 10041689 10117724 10450058 17706017 19346729 20083378 20900116 35412034 36575203 38693458 40166756 70824068 73150406 77386916 135427103 146300812 270854206 541708412 715828973 1431657946 2863315892 5010802811 10021605622 20043211244