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300121994 = 21019147263
BaseRepresentation
bin10001111000110…
…111111110001010
3202220201202222102
4101320313332022
51103312400434
645440353402
710302665144
oct2170677612
9686652872
10300121994
11144458107
1284615862
134a2414a3
142bc05c94
151b53507e
hex11e37f8a

300121994 has 8 divisors (see below), whose sum is σ = 450627840. Its totient is φ = 149912716.

The previous prime is 300121993. The next prime is 300121999. The reversal of 300121994 is 499121003.

It is a happy number.

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

It is a super-2 number, since 2×3001219942 = 180146422565072072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (300121993) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 71594 + ... + 75669.

It is an arithmetic number, because the mean of its divisors is an integer number (56328480).

Almost surely, 2300121994 is an apocalyptic number.

300121994 is a deficient number, since it is larger than the sum of its proper divisors (150505846).

300121994 is a wasteful number, since it uses less digits than its factorization.

300121994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148284.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 300121994 is about 17324.0293811803. The cubic root of 300121994 is about 669.5236786777.

Adding to 300121994 its reverse (499121003), we get a palindrome (799242997).

The spelling of 300121994 in words is "three hundred million, one hundred twenty-one thousand, nine hundred ninety-four".

Divisors: 1 2 1019 2038 147263 294526 150060997 300121994