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20211010212 = 22310116675751
BaseRepresentation
bin10010110100101010…
…111000101010100100
31221011112120200211210
4102310222320222210
5312343004311322
613141304031420
71313563516011
oct226452705244
957145520753
1020211010212
118631652128
123b00762570
131ba1318553
14d9a332708
157d454c70c
hex4b4ab8aa4

20211010212 has 24 divisors (see below), whose sum is σ = 47625947712. Its totient is φ = 6670300000.

The previous prime is 20211010187. The next prime is 20211010231. The reversal of 20211010212 is 21201011202.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8336664 + ... + 8339087.

It is an arithmetic number, because the mean of its divisors is an integer number (1984414488).

Almost surely, 220211010212 is an apocalyptic number.

It is an amenable number.

20211010212 is an abundant number, since it is smaller than the sum of its proper divisors (27414937500).

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

20211010212 is a wasteful number, since it uses less digits than its factorization.

20211010212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16675859 (or 16675857 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20211010212 its reverse (21201011202), we get a palindrome (41412021414).

The spelling of 20211010212 in words is "twenty billion, two hundred eleven million, ten thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 101 202 303 404 606 1212 16675751 33351502 50027253 66703004 100054506 200109012 1684250851 3368501702 5052752553 6737003404 10105505106 20211010212