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20051410042 = 2100091001669
BaseRepresentation
bin10010101011001010…
…000011110001111010
31220202102021011120101
4102223022003301322
5312031130110132
613113403150014
71306615113256
oct225312036172
956672234511
1020051410042
11855a553164
123a7721530a
131b77237a91
14d83069266
157c55237e7
hex4ab283c7a

20051410042 has 8 divisors (see below), whose sum is σ = 30080150100. Its totient is φ = 10024693344.

The previous prime is 20051409997. The next prime is 20051410073. The reversal of 20051410042 is 24001415002.

It can be written as a sum of positive squares in 2 ways, for example, as 17904848481 + 2146561561 = 133809^2 + 46331^2 .

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

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, 480817 + ... + 520852.

Almost surely, 220051410042 is an apocalyptic number.

20051410042 is a deficient number, since it is larger than the sum of its proper divisors (10028740058).

20051410042 is a wasteful number, since it uses less digits than its factorization.

20051410042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011680.

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 20051410042 its reverse (24001415002), we get a palindrome (44052825044).

The spelling of 20051410042 in words is "twenty billion, fifty-one million, four hundred ten thousand, forty-two".

Divisors: 1 2 10009 20018 1001669 2003338 10025705021 20051410042