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20211130144212 = 2237594078113427
BaseRepresentation
bin1001001100001110001010…
…01110111001010111010100
32122120011110102002002200120
410212013011032321113110
510122114343304103322
6110552510501511540
74154130434442630
oct446070516712724
978504412062616
1020211130144212
116492546077327
1223250767125b0
13b37b94496857
144dc31c609dc0
15250b10505a5c
hex1261c53b95d4

20211130144212 has 48 divisors (see below), whose sum is σ = 54809844472320. Its totient is φ = 5676733888992.

The previous prime is 20211130144099. The next prime is 20211130144243. The reversal of 20211130144212 is 21244103111202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2039051758 + ... + 2039061669.

It is an arithmetic number, because the mean of its divisors is an integer number (1141871759840).

Almost surely, 220211130144212 is an apocalyptic number.

It is an amenable number.

20211130144212 is an abundant number, since it is smaller than the sum of its proper divisors (34598714328108).

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

20211130144212 is a wasteful number, since it uses less digits than its factorization.

20211130144212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4078113500 (or 4078113498 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 20211130144212 its reverse (21244103111202), we get a palindrome (41455233255414).

The spelling of 20211130144212 in words is "twenty trillion, two hundred eleven billion, one hundred thirty million, one hundred forty-four thousand, two hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 59 84 118 177 236 354 413 708 826 1239 1652 2478 4956 4078113427 8156226854 12234340281 16312453708 24468680562 28546793989 48937361124 57093587978 85640381967 114187175956 171280763934 240608692193 342561527868 481217384386 721826076579 962434768772 1443652153158 1684260845351 2887304306316 3368521690702 5052782536053 6737043381404 10105565072106 20211130144212