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20010441465 = 3257197322463
BaseRepresentation
bin10010101000101101…
…110001101011111001
31220122120011202020200
4102220231301223321
5311440133111330
613105341112413
71305606642330
oct225055615371
956576152220
1020010441465
118539410933
123a65558709
131b6b8c2411
14d7b842d17
157c1b2ea60
hex4a8b71af9

20010441465 has 48 divisors (see below), whose sum is σ = 39841072128. Its totient is φ = 9101167488.

The previous prime is 20010441463. The next prime is 20010441511. The reversal of 20010441465 is 56414401002.

20010441465 is a `hidden beast` number, since 200 + 10 + 441 + 4 + 6 + 5 = 666.

It is not a de Polignac number, because 20010441465 - 21 = 20010441463 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20010441463) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 99177 + ... + 223286.

It is an arithmetic number, because the mean of its divisors is an integer number (830022336).

Almost surely, 220010441465 is an apocalyptic number.

It is an amenable number.

20010441465 is a deficient number, since it is larger than the sum of its proper divisors (19830630663).

20010441465 is a wasteful number, since it uses less digits than its factorization.

20010441465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322678 (or 322675 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 20010441465 its reverse (56414401002), we get a palindrome (76424842467).

The spelling of 20010441465 in words is "twenty billion, ten million, four hundred forty-one thousand, four hundred sixty-five".

Divisors: 1 3 5 7 9 15 21 35 45 63 105 197 315 591 985 1379 1773 2955 4137 6895 8865 12411 20685 62055 322463 967389 1612315 2257241 2902167 4836945 6771723 11286205 14510835 20315169 33858615 63525211 101575845 190575633 317626055 444676477 571726899 952878165 1334029431 2223382385 2858634495 4002088293 6670147155 20010441465