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13250244125225 = 521915727666637
BaseRepresentation
bin1100000011010001000000…
…0110000010001000101001
31201220201012021222020020202
43000310100012002020221
53214042444444001400
644103024512401545
72535204254514452
oct300642006021051
951821167866222
1013250244125225
114249440414928
12159bb9bb462b5
137516534b09b3
1433b45b024129
1517ea08b244d5
hexc0d10182229

13250244125225 has 12 divisors (see below), whose sum is σ = 16431160974924. Its totient is φ = 10599641584320.

The previous prime is 13250244125201. The next prime is 13250244125243. The reversal of 13250244125225 is 52252144205231.

It can be written as a sum of positive squares in 6 ways, for example, as 168907848256 + 13081336276969 = 410984^2 + 3616813^2 .

It is not a de Polignac number, because 13250244125225 - 28 = 13250244124969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13354394 + ... + 14312243.

It is an arithmetic number, because the mean of its divisors is an integer number (1369263414577).

Almost surely, 213250244125225 is an apocalyptic number.

It is an amenable number.

13250244125225 is a deficient number, since it is larger than the sum of its proper divisors (3180916849699).

13250244125225 is a wasteful number, since it uses less digits than its factorization.

13250244125225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27685804 (or 27685799 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 38.

The spelling of 13250244125225 in words is "thirteen trillion, two hundred fifty billion, two hundred forty-four million, one hundred twenty-five thousand, two hundred twenty-five".

Divisors: 1 5 25 19157 95785 478925 27666637 138333185 691665925 530009765009 2650048825045 13250244125225