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1301300305 = 5389669049
BaseRepresentation
bin100110110010000…
…0100010001010001
310100200121220102121
41031210010101101
510131113102210
6333043214241
744150604304
oct11544042121
93320556377
101301300305
116086061a8
12303977381
131797a1aa6
14c4b7cb3b
157939a6da
hex4d904451

1301300305 has 8 divisors (see below), whose sum is σ = 1565577000. Its totient is φ = 1038362496.

The previous prime is 1301300303. The next prime is 1301300389. The reversal of 1301300305 is 5030031031.

It can be written as a sum of positive squares in 4 ways, for example, as 16507969 + 1284792336 = 4063^2 + 35844^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1301300305 - 21 = 1301300303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1301300303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332580 + ... + 336469.

It is an arithmetic number, because the mean of its divisors is an integer number (195697125).

Almost surely, 21301300305 is an apocalyptic number.

It is an amenable number.

1301300305 is a deficient number, since it is larger than the sum of its proper divisors (264276695).

1301300305 is an equidigital number, since it uses as much as digits as its factorization.

1301300305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669443.

The product of its (nonzero) digits is 135, while the sum is 16.

The square root of 1301300305 is about 36073.5402338057. The cubic root of 1301300305 is about 1091.7566447859.

Adding to 1301300305 its reverse (5030031031), we get a palindrome (6331331336).

The spelling of 1301300305 in words is "one billion, three hundred one million, three hundred thousand, three hundred five".

Divisors: 1 5 389 1945 669049 3345245 260260061 1301300305