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20050425404420 = 2251397212383239
BaseRepresentation
bin1001000111100010110100…
…11110111101110000000100
32121222210122121202110102212
410203301122132331300010
510112001232400420140
6110351012133322552
74136411142624515
oct443613236756004
977883577673385
1020050425404420
116430379477794
1222b9aa6a96458
13b2599321b348
144d4635286a0c
1524b856c5b765
hex123c5a7bdc04

20050425404420 has 24 divisors (see below), whose sum is σ = 42408813451200. Its totient is φ = 7962471094752.

The previous prime is 20050425404411. The next prime is 20050425404431. The reversal of 20050425404420 is 2440452405002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3606188840 + ... + 3606194399.

It is an arithmetic number, because the mean of its divisors is an integer number (1767033893800).

Almost surely, 220050425404420 is an apocalyptic number.

20050425404420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20050425404420 is an abundant number, since it is smaller than the sum of its proper divisors (22358388046780).

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

20050425404420 is a wasteful number, since it uses less digits than its factorization.

20050425404420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7212383387 (or 7212383385 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 32.

Adding to 20050425404420 its reverse (2440452405002), we get a palindrome (22490877809422).

The spelling of 20050425404420 in words is "twenty trillion, fifty billion, four hundred twenty-five million, four hundred four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 139 278 556 695 1390 2780 7212383239 14424766478 28849532956 36061916195 72123832390 144247664780 1002521270221 2005042540442 4010085080884 5012606351105 10025212702210 20050425404420