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297225145 = 5721134019
BaseRepresentation
bin10001101101110…
…100101110111001
3202201021121020201
4101231310232321
51102042201040
645254322201
710236241420
oct2155645671
9681247221
10297225145
11142859718
1283659361
1349768a89
142b6902b7
151b161a9a
hex11b74bb9

297225145 has 16 divisors (see below), whose sum is σ = 407917440. Its totient is φ = 203664384.

The previous prime is 297225119. The next prime is 297225163. The reversal of 297225145 is 541522792.

It is not a de Polignac number, because 297225145 - 27 = 297225017 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 71946 + ... + 75964.

It is an arithmetic number, because the mean of its divisors is an integer number (25494840).

Almost surely, 2297225145 is an apocalyptic number.

It is an amenable number.

297225145 is a deficient number, since it is larger than the sum of its proper divisors (110692295).

297225145 is a wasteful number, since it uses less digits than its factorization.

297225145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6144.

The product of its digits is 50400, while the sum is 37.

The square root of 297225145 is about 17240.2188211171. The cubic root of 297225145 is about 667.3625765059.

The spelling of 297225145 in words is "two hundred ninety-seven million, two hundred twenty-five thousand, one hundred forty-five".

Divisors: 1 5 7 35 2113 4019 10565 14791 20095 28133 73955 140665 8492147 42460735 59445029 297225145