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25420042341 = 323318533079
BaseRepresentation
bin10111101011001001…
…110001000001100101
32102121120021221120200
4113223021301001211
5404030012323331
615402223421113
71556634536421
oct275311610145
972546257520
1025420042341
11a864a51061
124b15154799
132521574595
141332087b81
159db9e45e6
hex5eb271065

25420042341 has 12 divisors (see below), whose sum is σ = 36828773280. Its totient is φ = 16895494440.

The previous prime is 25420042337. The next prime is 25420042343. The reversal of 25420042341 is 14324002452.

25420042341 is a `hidden beast` number, since 2 + 5 + 420 + 0 + 4 + 234 + 1 = 666.

It is not a de Polignac number, because 25420042341 - 22 = 25420042337 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25420042343) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 4263561 + ... + 4269518.

It is an arithmetic number, because the mean of its divisors is an integer number (3069064440).

Almost surely, 225420042341 is an apocalyptic number.

It is an amenable number.

25420042341 is a deficient number, since it is larger than the sum of its proper divisors (11408730939).

25420042341 is a wasteful number, since it uses less digits than its factorization.

25420042341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8533416 (or 8533413 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 25420042341 its reverse (14324002452), we get a palindrome (39744044793).

The spelling of 25420042341 in words is "twenty-five billion, four hundred twenty million, forty-two thousand, three hundred forty-one".

Divisors: 1 3 9 331 993 2979 8533079 25599237 76797711 2824449149 8473347447 25420042341