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20612770441 = 53439885923
BaseRepresentation
bin10011001100100111…
…011110101010001001
31222012112120020021021
4103030213132222021
5314203332123231
613245215112441
71326542441434
oct231447365211
958175506237
1020612770441
11881840a57a
123bb3212721
131c366250b3
14dd783481b
1580995c811
hex4cc9dea89

20612770441 has 8 divisors (see below), whose sum is σ = 21049554240. Its totient is φ = 20177759472.

The previous prime is 20612770427. The next prime is 20612770447. The reversal of 20612770441 is 14407721602.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20612770441 - 27 = 20612770313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20612770397 and 20612770406.

It is not an unprimeable number, because it can be changed into a prime (20612770447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 419695 + ... + 466228.

It is an arithmetic number, because the mean of its divisors is an integer number (2631194280).

Almost surely, 220612770441 is an apocalyptic number.

It is an amenable number.

20612770441 is a deficient number, since it is larger than the sum of its proper divisors (436783799).

20612770441 is an equidigital number, since it uses as much as digits as its factorization.

20612770441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886415.

The product of its (nonzero) digits is 18816, while the sum is 34.

The spelling of 20612770441 in words is "twenty billion, six hundred twelve million, seven hundred seventy thousand, four hundred forty-one".

Divisors: 1 53 439 23267 885923 46953919 388920197 20612770441