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20010055412 = 2241122012533
BaseRepresentation
bin10010101000101100…
…010011011011110100
31220122112110010200102
4102220230103123310
5311440033233122
613105324533232
71305603443654
oct225054233364
956575403612
1020010055412
118539177886
123a653b1218
131b6b7b8799
14d7b782364
157c1aa5492
hex4a8b136f4

20010055412 has 12 divisors (see below), whose sum is σ = 35871684996. Its totient is φ = 9761002560.

The previous prime is 20010055393. The next prime is 20010055487. The reversal of 20010055412 is 21455001002.

It can be written as a sum of positive squares in 2 ways, for example, as 1999341796 + 18010713616 = 44714^2 + 134204^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61006103 + ... + 61006430.

It is an arithmetic number, because the mean of its divisors is an integer number (2989307083).

Almost surely, 220010055412 is an apocalyptic number.

It is an amenable number.

20010055412 is a deficient number, since it is larger than the sum of its proper divisors (15861629584).

20010055412 is a wasteful number, since it uses less digits than its factorization.

20010055412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122012578 (or 122012576 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

Adding to 20010055412 its reverse (21455001002), we get a palindrome (41465056414).

The spelling of 20010055412 in words is "twenty billion, ten million, fifty-five thousand, four hundred twelve".

Divisors: 1 2 4 41 82 164 122012533 244025066 488050132 5002513853 10005027706 20010055412