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10520334025 = 52420813361
BaseRepresentation
bin10011100110000111…
…11000111011001001
31000011011212100012221
421303003320323021
5133021201142100
64455531134041
7521463235525
oct116303707311
930134770187
1010520334025
1145094aa733
1220572a4321
13cb8741a26
1471b2ccd85
154188e101a
hex2730f8ec9

10520334025 has 6 divisors (see below), whose sum is σ = 13045214222. Its totient is φ = 8416267200.

The previous prime is 10520334007. The next prime is 10520334059. The reversal of 10520334025 is 52043302501.

It can be written as a sum of positive squares in 3 ways, for example, as 25765776 + 10494568249 = 5076^2 + 102443^2 .

It is not a de Polignac number, because 10520334025 - 27 = 10520333897 is a prime.

It is a super-2 number, since 2×105203340252 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 420813361 = 10520334025 / (1 + 0 + 5 + 2 + 0 + 3 + 3 + 4 + 0 + 2 + 5).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 210406656 + ... + 210406705.

Almost surely, 210520334025 is an apocalyptic number.

It is an amenable number.

10520334025 is a deficient number, since it is larger than the sum of its proper divisors (2524880197).

10520334025 is an equidigital number, since it uses as much as digits as its factorization.

10520334025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420813371 (or 420813366 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 10520334025 its reverse (52043302501), we get a palindrome (62563636526).

The spelling of 10520334025 in words is "ten billion, five hundred twenty million, three hundred thirty-four thousand, twenty-five".

Divisors: 1 5 25 420813361 2104066805 10520334025