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10520908524025 = 526487192
BaseRepresentation
bin1001100100011001011100…
…0000111110100111111001
31101020210022012112000222121
42121012113000332213321
52334333310040232100
634213123314321241
72134052630630644
oct231062700764771
941223265460877
1010520908524025
11339698a645039
12121b032b89221
135b416ac703b3
14285301172a5b
15133a1645451a
hex9919703e9f9

10520908524025 has 9 divisors (see below), whose sum is σ = 13045946680111. Its totient is φ = 8416713844840.

The previous prime is 10520908524023. The next prime is 10520908524031. The reversal of 10520908524025 is 52042580902501.

The square root of 10520908524025 is 3243595.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 3787527068649 + 6733381455376 = 1946157^2 + 2594876^2 .

It is not a de Polignac number, because 10520908524025 - 21 = 10520908524023 is a prime.

It is a super-2 number, since 2×105209085240252 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10520908524023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 15893616 + ... + 16542334.

Almost surely, 210520908524025 is an apocalyptic number.

10520908524025 is the 3243595-th square number.

10520908524025 is the 1621798-th centered octagonal number.

It is an amenable number.

10520908524025 is a deficient number, since it is larger than the sum of its proper divisors (2525038156086).

10520908524025 is an frugal number, since it uses more digits than its factorization.

10520908524025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297448 (or 648724 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 43.

The spelling of 10520908524025 in words is "ten trillion, five hundred twenty billion, nine hundred eight million, five hundred twenty-four thousand, twenty-five".

Divisors: 1 5 25 648719 3243595 16217975 420836340961 2104181704805 10520908524025