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20211233013020 = 2257271532715683
BaseRepresentation
bin1001001100001110010110…
…10111010011110100011100
32122120011201120122101011102
410212013023113103310130
510122120101122404040
6110552525014412232
74154133124013660
oct446071327236434
978504646571142
1020211233013020
116492599148175
1223250a5061078
13b37bac8a307a
144dc32c1468a0
15250b19575515
hex1261cb5d3d1c

20211233013020 has 48 divisors (see below), whose sum is σ = 48685951792128. Its totient is φ = 6903995238720.

The previous prime is 20211233013019. The next prime is 20211233013043. The reversal of 20211233013020 is 2031033211202.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20211233012983 and 20211233013001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266319902 + ... + 266395781.

It is an arithmetic number, because the mean of its divisors is an integer number (1014290662336).

Almost surely, 220211233013020 is an apocalyptic number.

20211233013020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20211233013020 is an abundant number, since it is smaller than the sum of its proper divisors (28474718779108).

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

20211233013020 is a wasteful number, since it uses less digits than its factorization.

20211233013020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532715970 (or 532715968 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20211233013020 its reverse (2031033211202), we get a palindrome (22242266224222).

The spelling of 20211233013020 in words is "twenty trillion, two hundred eleven billion, two hundred thirty-three million, thirteen thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 271 542 1084 1355 1897 2710 3794 5420 7588 9485 18970 37940 532715683 1065431366 2130862732 2663578415 3729009781 5327156830 7458019562 10654313660 14916039124 18645048905 37290097810 74580195620 144365950093 288731900186 577463800372 721829750465 1010561650651 1443659500930 2021123301302 2887319001860 4042246602604 5052808253255 10105616506510 20211233013020