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20212053412 = 227369219361
BaseRepresentation
bin10010110100101110…
…110111010110100100
31221011121112200211211
4102310232313112210
5312343241202122
613141342241204
71313605422265
oct226456672644
957147480754
1020212053412
1186321a4981
123b00b86204
131ba15c2325
14d9a52496c
157d46a6877
hex4b4bb75a4

20212053412 has 12 divisors (see below), whose sum is σ = 35855629516. Its totient is φ = 9967587840.

The previous prime is 20212053397. The next prime is 20212053427. The reversal of 20212053412 is 21435021202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20212053397) and next prime (20212053427).

It can be written as a sum of positive squares in 2 ways, for example, as 6787123456 + 13424929956 = 82384^2 + 115866^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 34609389 + ... + 34609972.

Almost surely, 220212053412 is an apocalyptic number.

It is an amenable number.

20212053412 is a deficient number, since it is larger than the sum of its proper divisors (15643576104).

20212053412 is a wasteful number, since it uses less digits than its factorization.

20212053412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69219438 (or 69219436 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 20212053412 its reverse (21435021202), we get a palindrome (41647074614).

The spelling of 20212053412 in words is "twenty billion, two hundred twelve million, fifty-three thousand, four hundred twelve".

Divisors: 1 2 4 73 146 292 69219361 138438722 276877444 5053013353 10106026706 20212053412