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297825897 = 3313202429
BaseRepresentation
bin10001110000000…
…111011001101001
3202202102010022210
4101300013121221
51102220412042
645315235333
710244323035
oct2160073151
9682363283
10297825897
1114312a006
12838a8b49
1349919355
142b7a91c5
151b22ea9c
hex11c07669

297825897 has 8 divisors (see below), whose sum is σ = 409911040. Its totient is φ = 192145680.

The previous prime is 297825889. The next prime is 297825917. The reversal of 297825897 is 798528792.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 297825897 - 23 = 297825889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (297825877) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1601122 + ... + 1601307.

It is an arithmetic number, because the mean of its divisors is an integer number (51238880).

Almost surely, 2297825897 is an apocalyptic number.

It is an amenable number.

297825897 is a deficient number, since it is larger than the sum of its proper divisors (112085143).

297825897 is a wasteful number, since it uses less digits than its factorization.

297825897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3202463.

The product of its digits is 5080320, while the sum is 57.

The square root of 297825897 is about 17257.6330068755. The cubic root of 297825897 is about 667.8118987332.

The spelling of 297825897 in words is "two hundred ninety-seven million, eight hundred twenty-five thousand, eight hundred ninety-seven".

Divisors: 1 3 31 93 3202429 9607287 99275299 297825897