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11250102121 = 17238927689
BaseRepresentation
bin10100111101000111…
…01110111101101001
31002001001001101211221
422132203232331221
5141020011231441
65100200422041
7545534201356
oct123643567551
932031041757
1011250102121
114853431265
12221b777921
1310a39a467b
1478a1b562d
1545c9e38d1
hex29e8eef69

11250102121 has 6 divisors (see below), whose sum is σ = 11950800830. Its totient is φ = 10588331136.

The previous prime is 11250102107. The next prime is 11250102131. The reversal of 11250102121 is 12120105211.

It can be written as a sum of positive squares in 3 ways, for example, as 3385959721 + 7864142400 = 58189^2 + 88680^2 .

It is not a de Polignac number, because 11250102121 - 211 = 11250100073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11250102095 and 11250102104.

It is not an unprimeable number, because it can be changed into a prime (11250102131) 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, 19463556 + ... + 19464133.

Almost surely, 211250102121 is an apocalyptic number.

It is an amenable number.

11250102121 is a deficient number, since it is larger than the sum of its proper divisors (700698709).

11250102121 is an equidigital number, since it uses as much as digits as its factorization.

11250102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38927723 (or 38927706 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 11250102121 its reverse (12120105211), we get a palindrome (23370207332).

The spelling of 11250102121 in words is "eleven billion, two hundred fifty million, one hundred two thousand, one hundred twenty-one".

Divisors: 1 17 289 38927689 661770713 11250102121