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20043144212 = 2271363438681
BaseRepresentation
bin10010101010101010…
…100001110000010100
31220201211201012222112
4102222222201300110
5312022021103322
613112510050152
71306454625530
oct225252416024
956654635875
1020043144212
1185559179a3
123a744a9958
131b75602660
14d81d16bc0
157c493e5e2
hex4aaaa1c14

20043144212 has 48 divisors (see below), whose sum is σ = 43181628672. Its totient is φ = 7926992640.

The previous prime is 20043144197. The next prime is 20043144217. The reversal of 20043144212 is 21244134002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20043144217) 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, 2304512 + ... + 2313192.

It is an arithmetic number, because the mean of its divisors is an integer number (899617264).

Almost surely, 220043144212 is an apocalyptic number.

It is an amenable number.

20043144212 is an abundant number, since it is smaller than the sum of its proper divisors (23138484460).

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

20043144212 is a wasteful number, since it uses less digits than its factorization.

20043144212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15048 (or 15046 counting only the distinct ones).

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

Adding to 20043144212 its reverse (21244134002), we get a palindrome (41287278214).

The spelling of 20043144212 in words is "twenty billion, forty-three million, one hundred forty-four thousand, two hundred twelve".

Divisors: 1 2 4 7 13 14 26 28 52 91 182 364 6343 8681 12686 17362 25372 34724 44401 60767 82459 88802 112853 121534 164918 177604 225706 243068 329836 451412 577213 789971 1154426 1579942 2308852 3159884 55063583 110127166 220254332 385445081 715826579 770890162 1431653158 1541780324 2863306316 5010786053 10021572106 20043144212