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300228121 = 338988589
BaseRepresentation
bin10001111001010…
…001111000011001
3202220221011120001
4101321101320121
51103324244441
645442533001
710303616434
oct2171217031
9686834501
10300228121
1114451a916
1284667161
134a27a89b
142bc3281b
151b556731
hex11e51e19

300228121 has 4 divisors (see below), whose sum is σ = 300320100. Its totient is φ = 300136144.

The previous prime is 300228119. The next prime is 300228161. The reversal of 300228121 is 121822003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 271755225 + 28472896 = 16485^2 + 5336^2 .

It is a cyclic number.

It is not a de Polignac number, because 300228121 - 21 = 300228119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (300228161) 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, 40906 + ... + 47683.

It is an arithmetic number, because the mean of its divisors is an integer number (75080025).

Almost surely, 2300228121 is an apocalyptic number.

It is an amenable number.

300228121 is a deficient number, since it is larger than the sum of its proper divisors (91979).

300228121 is an equidigital number, since it uses as much as digits as its factorization.

300228121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91978.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 300228121 is about 17327.0921103340. The cubic root of 300228121 is about 669.6025867742.

The spelling of 300228121 in words is "three hundred million, two hundred twenty-eight thousand, one hundred twenty-one".

Divisors: 1 3389 88589 300228121