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1304010305 = 513172111657
BaseRepresentation
bin100110110111001…
…1001111001000001
310100212201120211222
41031232121321001
510132311312210
6333221244425
744212622213
oct11556317101
93325646758
101304010305
1160a097274
12304863715
1317a210440
14c52865b3
1579733655
hex4db99e41

1304010305 has 16 divisors (see below), whose sum is σ = 1686306384. Its totient is φ = 962319360.

The previous prime is 1304010283. The next prime is 1304010307. The reversal of 1304010305 is 5030104031.

It can be written as a sum of positive squares in 8 ways, for example, as 583696 + 1303426609 = 764^2 + 36103^2 .

It is not a de Polignac number, because 1304010305 - 26 = 1304010241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1304010307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106037 + ... + 117693.

It is an arithmetic number, because the mean of its divisors is an integer number (105394149).

Almost surely, 21304010305 is an apocalyptic number.

It is an amenable number.

1304010305 is a deficient number, since it is larger than the sum of its proper divisors (382296079).

1304010305 is a wasteful number, since it uses less digits than its factorization.

1304010305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13396.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 1304010305 is about 36111.0828555445. The cubic root of 1304010305 is about 1092.5139921442.

Adding to 1304010305 its reverse (5030104031), we get a palindrome (6334114336).

The spelling of 1304010305 in words is "one billion, three hundred four million, ten thousand, three hundred five".

Divisors: 1 5 13 65 1721 8605 11657 22373 58285 111865 151541 757705 20061697 100308485 260802061 1304010305