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20211022200 = 23352291161553
BaseRepresentation
bin10010110100101010…
…111011100101111000
31221011112121022021210
4102310222323211320
5312343010202300
613141304203120
71313563565655
oct226452734570
957145538253
1020211022200
118631660136
123b007694a0
131ba1320b45
14d9a336c2c
157d4551050
hex4b4abb978

20211022200 has 96 divisors (see below), whose sum is σ = 64814713200. Its totient is φ = 5203752960.

The previous prime is 20211022177. The next prime is 20211022207. The reversal of 20211022200 is 222011202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211022207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 563377 + ... + 598176.

Almost surely, 220211022200 is an apocalyptic number.

20211022200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20211022200 is an abundant number, since it is smaller than the sum of its proper divisors (44603691000).

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

20211022200 is a wasteful number, since it uses less digits than its factorization.

20211022200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161601 (or 1161592 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20211022200 its reverse (222011202), we get a palindrome (20433033402).

The spelling of 20211022200 in words is "twenty billion, two hundred eleven million, twenty-two thousand, two hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 25 29 30 40 50 58 60 75 87 100 116 120 145 150 174 200 232 290 300 348 435 580 600 696 725 870 1160 1450 1740 2175 2900 3480 4350 5800 8700 17400 1161553 2323106 3484659 4646212 5807765 6969318 9292424 11615530 13938636 17423295 23231060 27877272 29038825 33685037 34846590 46462120 58077650 67370074 69693180 87116475 101055111 116155300 134740148 139386360 168425185 174232950 202110222 232310600 269480296 336850370 348465900 404220444 505275555 673700740 696931800 808440888 842125925 1010551110 1347401480 1684251850 2021102220 2526377775 3368503700 4042204440 5052755550 6737007400 10105511100 20211022200