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20051441430 = 2352035732833
BaseRepresentation
bin10010101011001010…
…001011011100010110
31220202102022202121220
4102223022023130112
5312031132111210
613113403551210
71306615303626
oct225312133426
956672282556
1020051441430
11855a5747a9
123a7722b506
131b77249157
14d83076886
157c552cc70
hex4ab28b716

20051441430 has 32 divisors (see below), whose sum is σ = 48127289184. Its totient is φ = 5346625536.

The previous prime is 20051441387. The next prime is 20051441441. The reversal of 20051441430 is 3414415002.

It is a self number, because there is not a number n which added to its sum of digits gives 20051441430.

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 15 ways as a sum of consecutive naturals, for example, 594294 + ... + 627126.

It is an arithmetic number, because the mean of its divisors is an integer number (1503977787).

Almost surely, 220051441430 is an apocalyptic number.

20051441430 is an abundant number, since it is smaller than the sum of its proper divisors (28075847754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20051441430 is a wasteful number, since it uses less digits than its factorization.

20051441430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53200.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 20051441430 its reverse (3414415002), we get a palindrome (23465856432).

The spelling of 20051441430 in words is "twenty billion, fifty-one million, four hundred forty-one thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 20357 32833 40714 61071 65666 98499 101785 122142 164165 196998 203570 305355 328330 492495 610710 984990 668381381 1336762762 2005144143 3341906905 4010288286 6683813810 10025720715 20051441430