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10871686225 = 52434867449
BaseRepresentation
bin10100010000000000…
…01100010001010001
31001001122222212211101
422020000030101101
5134231122424400
64554441544401
7533260544131
oct121000142121
931048885741
1010871686225
114679868854
122134aa5101
13104347c53a
14751c2cac1
1543969556a
hex28800c451

10871686225 has 6 divisors (see below), whose sum is σ = 13480890950. Its totient is φ = 8697348960.

The previous prime is 10871686223. The next prime is 10871686261. The reversal of 10871686225 is 52268617801.

It can be written as a sum of positive squares in 3 ways, for example, as 652700304 + 10218985921 = 25548^2 + 101089^2 .

It is not a de Polignac number, because 10871686225 - 21 = 10871686223 is a prime.

It is a super-2 number, since 2×108716862252 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10871686223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 217433700 + ... + 217433749.

Almost surely, 210871686225 is an apocalyptic number.

It is an amenable number.

10871686225 is a deficient number, since it is larger than the sum of its proper divisors (2609204725).

10871686225 is an equidigital number, since it uses as much as digits as its factorization.

10871686225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434867459 (or 434867454 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 46.

The spelling of 10871686225 in words is "ten billion, eight hundred seventy-one million, six hundred eighty-six thousand, two hundred twenty-five".

Divisors: 1 5 25 434867449 2174337245 10871686225