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1301356241 = 281216481
BaseRepresentation
bin100110110010001…
…0001111011010001
310100200201202011022
41031210101323101
510131121344431
6333044325225
744151226343
oct11544217321
93320652138
101301356241
11608644229
123039a3815
131797c13a3
14c4b95293
15793ac07b
hex4d911ed1

1301356241 has 6 divisors (see below), whose sum is σ = 1306083126. Its totient is φ = 1296646400.

The previous prime is 1301356211. The next prime is 1301356247. The reversal of 1301356241 is 1426531031.

It can be written as a sum of positive squares in 3 ways, for example, as 323856016 + 977500225 = 17996^2 + 31265^2 .

It is not a de Polignac number, because 1301356241 - 210 = 1301355217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1301356241.

It is not an unprimeable number, because it can be changed into a prime (1301356247) 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, 70721 + ... + 87201.

It is an arithmetic number, because the mean of its divisors is an integer number (217680521).

Almost surely, 21301356241 is an apocalyptic number.

It is an amenable number.

1301356241 is a deficient number, since it is larger than the sum of its proper divisors (4726885).

1301356241 is an frugal number, since it uses more digits than its factorization.

1301356241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17043 (or 16762 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1301356241 is about 36074.3155305821. The cubic root of 1301356241 is about 1091.7722875048.

Adding to 1301356241 its reverse (1426531031), we get a palindrome (2727887272).

The spelling of 1301356241 in words is "one billion, three hundred one million, three hundred fifty-six thousand, two hundred forty-one".

Divisors: 1 281 16481 78961 4631161 1301356241