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1305101317 = 13219406447
BaseRepresentation
bin100110111001010…
…0100010000000101
310100221210000102211
41031302210100011
510133101220232
6333300503421
744225115052
oct11562442005
93327700384
101305101317
1160a771a33
123050aab71
1317a502c00
14c548c029
157989ba47
hex4dca4405

1305101317 has 12 divisors (see below), whose sum is σ = 1487599680. Its totient is φ = 1141300368.

The previous prime is 1305101267. The next prime is 1305101323. The reversal of 1305101317 is 7131015031.

It is not a de Polignac number, because 1305101317 - 223 = 1296712709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305101377) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 200013 + ... + 206434.

It is an arithmetic number, because the mean of its divisors is an integer number (123966640).

Almost surely, 21305101317 is an apocalyptic number.

It is an amenable number.

1305101317 is a deficient number, since it is larger than the sum of its proper divisors (182498363).

1305101317 is a wasteful number, since it uses less digits than its factorization.

1305101317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406492 (or 406479 counting only the distinct ones).

The product of its (nonzero) digits is 315, while the sum is 22.

The square root of 1305101317 is about 36126.1860289735. The cubic root of 1305101317 is about 1092.8185944437.

Adding to 1305101317 its reverse (7131015031), we get a palindrome (8436116348).

The spelling of 1305101317 in words is "one billion, three hundred five million, one hundred one thousand, three hundred seventeen".

Divisors: 1 13 19 169 247 3211 406447 5283811 7722493 68689543 100392409 1305101317