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297303121 = 1423208927
BaseRepresentation
bin10001101110000…
…111110001010001
3202201102120012201
4101232013301101
51102102144441
645300123201
710240014643
oct2156076121
9681376181
10297303121
11142902265
1283696501
134979540b
142b6b0893
151b179c31
hex11b87c51

297303121 has 4 divisors (see below), whose sum is σ = 297513472. Its totient is φ = 297092772.

The previous prime is 297303119. The next prime is 297303131. The reversal of 297303121 is 121303792.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 297303121 - 21 = 297303119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 297303121.

It is not an unprimeable number, because it can be changed into a prime (297303101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103041 + ... + 105886.

It is an arithmetic number, because the mean of its divisors is an integer number (74378368).

Almost surely, 2297303121 is an apocalyptic number.

It is an amenable number.

297303121 is a deficient number, since it is larger than the sum of its proper divisors (210351).

297303121 is a wasteful number, since it uses less digits than its factorization.

297303121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210350.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 297303121 is about 17242.4801290302. The cubic root of 297303121 is about 667.4209314995.

The spelling of 297303121 in words is "two hundred ninety-seven million, three hundred three thousand, one hundred twenty-one".

Divisors: 1 1423 208927 297303121