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297097925 = 5218165657
BaseRepresentation
bin10001101101010…
…101101011000101
3202201001010201212
4101231111223011
51102024113200
645251501205
710235201465
oct2155255305
9681033655
10297097925
11142782083
12835b7805
1349722bb7
142b659ba5
151b139035
hex11b55ac5

297097925 has 12 divisors (see below), whose sum is σ = 370442436. Its totient is φ = 236361600.

The previous prime is 297097909. The next prime is 297097937. The reversal of 297097925 is 529790792.

It can be written as a sum of positive squares in 6 ways, for example, as 5166529 + 291931396 = 2273^2 + 17086^2 .

It is not a de Polignac number, because 297097925 - 24 = 297097909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28304 + ... + 37353.

It is an arithmetic number, because the mean of its divisors is an integer number (30870203).

Almost surely, 2297097925 is an apocalyptic number.

297097925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

297097925 is a deficient number, since it is larger than the sum of its proper divisors (73344511).

297097925 is a wasteful number, since it uses less digits than its factorization.

297097925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65848 (or 65843 counting only the distinct ones).

The product of its (nonzero) digits is 714420, while the sum is 50.

The square root of 297097925 is about 17236.5287978757. The cubic root of 297097925 is about 667.2673468069.

The spelling of 297097925 in words is "two hundred ninety-seven million, ninety-seven thousand, nine hundred twenty-five".

Divisors: 1 5 25 181 905 4525 65657 328285 1641425 11883917 59419585 297097925