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275126475625 = 54209812
BaseRepresentation
bin1000000000011101101…
…00001101101101101001
3222022011001000001212121
410000032310031231221
514001424334210000
6330220311111241
725606614312511
oct4001664155551
9868131001777
10275126475625
11a67537a5291
12453a3372521
131cc37878951
14d45d8bc841
157253b70b1a
hex400ed0db69

275126475625 has 15 divisors (see below), whose sum is σ = 343814430883. Its totient is φ = 220090690000.

The previous prime is 275126475623. The next prime is 275126475629. The reversal of 275126475625 is 526574621572.

The square root of 275126475625 is 524525.

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

It can be written as a sum of positive squares in 7 ways, for example, as 210017808729 + 65108666896 = 458277^2 + 255164^2 .

It is not a de Polignac number, because 275126475625 - 21 = 275126475623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (275126475623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 13102635 + ... + 13123615.

Almost surely, 2275126475625 is an apocalyptic number.

275126475625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

275126475625 is the 524525-th square number.

275126475625 is the 262263-rd centered octagonal number.

It is an amenable number.

275126475625 is a deficient number, since it is larger than the sum of its proper divisors (68687955258).

275126475625 is an frugal number, since it uses more digits than its factorization.

275126475625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41982 (or 20986 counting only the distinct ones).

The product of its digits is 7056000, while the sum is 52.

The spelling of 275126475625 in words is "two hundred seventy-five billion, one hundred twenty-six million, four hundred seventy-five thousand, six hundred twenty-five".

Divisors: 1 5 25 125 625 20981 104905 524525 2622625 13113125 440202361 2201011805 11005059025 55025295125 275126475625