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297030312 = 23324125421
BaseRepresentation
bin10001101101000…
…101001010101000
3202200220200222200
4101231011022220
51102014432222
645250220200
710234500405
oct2155051250
9680820880
10297030312
111427362a7
1283584660
13496cb1a7
142b63d2ac
151b123eac
hex11b452a8

297030312 has 24 divisors (see below), whose sum is σ = 804457290. Its totient is φ = 99010080.

The previous prime is 297030311. The next prime is 297030319. The reversal of 297030312 is 213030792.

It can be written as a sum of positive squares in only one way, i.e., 221235876 + 75794436 = 14874^2 + 8706^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (297030311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2062639 + ... + 2062782.

Almost surely, 2297030312 is an apocalyptic number.

It is an amenable number.

297030312 is an abundant number, since it is smaller than the sum of its proper divisors (507426978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

297030312 is a wasteful number, since it uses less digits than its factorization.

297030312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4125433 (or 4125426 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 297030312 is about 17234.5673574941. The cubic root of 297030312 is about 667.2167244742.

The spelling of 297030312 in words is "two hundred ninety-seven million, thirty thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 4125421 8250842 12376263 16501684 24752526 33003368 37128789 49505052 74257578 99010104 148515156 297030312