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20211010992 = 2432421333383
BaseRepresentation
bin10010110100101010…
…111000110110110000
31221011112120201220200
4102310222320312300
5312343004322432
613141304035200
71313563521204
oct226452706660
957145521820
1020211010992
118631652777
123b00762b00
131ba1318a03
14d9a332b04
157d454ca7c
hex4b4ab8db0

20211010992 has 60 divisors (see below), whose sum is σ = 56697283344. Its totient is φ = 6720981120.

The previous prime is 20211010987. The next prime is 20211010993. The reversal of 20211010992 is 29901011202.

It is not an unprimeable number, because it can be changed into a prime (20211010993) 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 11 ways as a sum of consecutive naturals, for example, 106068 + ... + 227315.

Almost surely, 220211010992 is an apocalyptic number.

It is an amenable number.

20211010992 is an abundant number, since it is smaller than the sum of its proper divisors (36486272352).

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

20211010992 is a wasteful number, since it uses less digits than its factorization.

20211010992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333818 (or 333809 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The spelling of 20211010992 in words is "twenty billion, two hundred eleven million, ten thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 421 842 1263 1684 2526 3368 3789 5052 6736 7578 10104 15156 20208 30312 60624 333383 666766 1000149 1333532 2000298 2667064 3000447 4000596 5334128 6000894 8001192 12001788 16002384 24003576 48007152 140354243 280708486 421062729 561416972 842125458 1122833944 1263188187 1684250916 2245667888 2526376374 3368501832 5052752748 6737003664 10105505496 20211010992