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11641427725 = 521373398957
BaseRepresentation
bin10101101011110001…
…00001011100001101
31010001022101210122211
422311320201130031
5142320201141400
65203100110421
7561325334344
oct126570413415
933038353584
1011641427725
114a34311a54
12230a835411
131136a99895
147c615cb5b
15482041dba
hex2b5e2170d

11641427725 has 12 divisors (see below), whose sum is σ = 14540742324. Its totient is φ = 9245160320.

The previous prime is 11641427723. The next prime is 11641427731. The reversal of 11641427725 is 52772414611.

11641427725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 1399582921 + 10241844804 = 37411^2 + 101202^2 .

It is not a de Polignac number, because 11641427725 - 21 = 11641427723 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11641427723) 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, 1696054 + ... + 1702903.

It is an arithmetic number, because the mean of its divisors is an integer number (1211728527).

Almost surely, 211641427725 is an apocalyptic number.

It is an amenable number.

11641427725 is a deficient number, since it is larger than the sum of its proper divisors (2899314599).

11641427725 is a wasteful number, since it uses less digits than its factorization.

11641427725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3399104 (or 3399099 counting only the distinct ones).

The product of its digits is 94080, while the sum is 40.

The spelling of 11641427725 in words is "eleven billion, six hundred forty-one million, four hundred twenty-seven thousand, seven hundred twenty-five".

Divisors: 1 5 25 137 685 3425 3398957 16994785 84973925 465657109 2328285545 11641427725