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300493661 = 1321778069
BaseRepresentation
bin10001111010010…
…010101101011101
3202221102122210212
4101322102231131
51103411244121
645452342205
710306103546
oct2172225535
9687378725
10300493661
11144691376
1284774965
134a341700
142bca14cd
151b5aa25b
hex11e92b5d

300493661 has 6 divisors (see below), whose sum is σ = 325386810. Its totient is φ = 277378608.

The previous prime is 300493657. The next prime is 300493663. The reversal of 300493661 is 166394003.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 7022500 + 293471161 = 2650^2 + 17131^2 .

It is not a de Polignac number, because 300493661 - 22 = 300493657 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (300493663) 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, 888866 + ... + 889203.

It is an arithmetic number, because the mean of its divisors is an integer number (54231135).

Almost surely, 2300493661 is an apocalyptic number.

It is an amenable number.

300493661 is a deficient number, since it is larger than the sum of its proper divisors (24893149).

300493661 is a wasteful number, since it uses less digits than its factorization.

300493661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778095 (or 1778082 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 300493661 is about 17334.7529835299. The cubic root of 300493661 is about 669.7999410118.

The spelling of 300493661 in words is "three hundred million, four hundred ninety-three thousand, six hundred sixty-one".

Divisors: 1 13 169 1778069 23114897 300493661