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427080725 = 5217083229
BaseRepresentation
bin11001011101001…
…011110000010101
31002202121221121122
4121131023300111
51333313040400
6110213453325
713404061211
oct3135136025
91082557548
10427080725
111aa092085
12bb041245
136a6338b6
1440a13941
1527762685
hex1974bc15

427080725 has 6 divisors (see below), whose sum is σ = 529580130. Its totient is φ = 341664560.

The previous prime is 427080673. The next prime is 427080757. The reversal of 427080725 is 527080724.

It can be written as a sum of positive squares in 3 ways, for example, as 125641681 + 301439044 = 11209^2 + 17362^2 .

It is not a de Polignac number, because 427080725 - 220 = 426032149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8541590 + ... + 8541639.

It is an arithmetic number, because the mean of its divisors is an integer number (88263355).

Almost surely, 2427080725 is an apocalyptic number.

It is an amenable number.

427080725 is a deficient number, since it is larger than the sum of its proper divisors (102499405).

427080725 is a wasteful number, since it uses less digits than its factorization.

427080725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17083239 (or 17083234 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 427080725 is about 20665.9315057415. The cubic root of 427080725 is about 753.0722717514.

Subtracting 427080725 from its reverse (527080724), we obtain a palindrome (99999999).

The spelling of 427080725 in words is "four hundred twenty-seven million, eighty thousand, seven hundred twenty-five".

Divisors: 1 5 25 17083229 85416145 427080725