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10211066109 = 321134562901
BaseRepresentation
bin10011000001010000…
…01000000011111101
3222100121220220101200
421200220020003331
5131403013103414
64405122330113
7511016426016
oct114050100375
928317826350
1010211066109
11436a976112
121b8b7b9939
13c6964a66a
146cc1c600d
153eb6a1109
hex260a080fd

10211066109 has 6 divisors (see below), whose sum is σ = 14749317726. Its totient is φ = 6807377400.

The previous prime is 10211066069. The next prime is 10211066123. The reversal of 10211066109 is 90166011201.

10211066109 is a `hidden beast` number, since 10 + 21 + 10 + 6 + 610 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6683062500 + 3528003609 = 81750^2 + 59397^2 .

It is not a de Polignac number, because 10211066109 - 29 = 10211065597 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10211066179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 567281442 + ... + 567281459.

It is an arithmetic number, because the mean of its divisors is an integer number (2458219621).

Almost surely, 210211066109 is an apocalyptic number.

It is an amenable number.

10211066109 is a deficient number, since it is larger than the sum of its proper divisors (4538251617).

10211066109 is a wasteful number, since it uses less digits than its factorization.

10211066109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134562907 (or 1134562904 counting only the distinct ones).

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

The spelling of 10211066109 in words is "ten billion, two hundred eleven million, sixty-six thousand, one hundred nine".

Divisors: 1 3 9 1134562901 3403688703 10211066109