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25340241121 = 135336778289
BaseRepresentation
bin10111100110011001…
…010110010011100001
32102102000010121212221
4113212121112103201
5403344100203441
615350253151041
71554645331666
oct274631262341
972360117787
1025340241121
11a8239a6238
124ab248b481
13250ab83820
141325633a6d
159d49ce8d1
hex5e66564e1

25340241121 has 8 divisors (see below), whose sum is σ = 27804387240. Its totient is φ = 22949651712.

The previous prime is 25340241107. The next prime is 25340241197. The reversal of 25340241121 is 12114204352.

It can be written as a sum of positive squares in 4 ways, for example, as 6916250896 + 18423990225 = 83164^2 + 135735^2 .

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

It is not a de Polignac number, because 25340241121 - 211 = 25340239073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25340251121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18388456 + ... + 18389833.

It is an arithmetic number, because the mean of its divisors is an integer number (3475548405).

Almost surely, 225340241121 is an apocalyptic number.

It is an amenable number.

25340241121 is a deficient number, since it is larger than the sum of its proper divisors (2464146119).

25340241121 is a wasteful number, since it uses less digits than its factorization.

25340241121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36778355.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 25340241121 its reverse (12114204352), we get a palindrome (37454445473).

The spelling of 25340241121 in words is "twenty-five billion, three hundred forty million, two hundred forty-one thousand, one hundred twenty-one".

Divisors: 1 13 53 689 36778289 478117757 1949249317 25340241121