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1310502197 is a prime number
BaseRepresentation
bin100111000011100…
…1010110100110101
310101022221102001102
41032013022310311
510140442032242
6334012335445
744322041054
oct11607126465
93338842042
101310502197
11612820774
12306a74585
1317b6742b4
14c609639b
157a0b6e32
hex4e1cad35

1310502197 has 2 divisors, whose sum is σ = 1310502198. Its totient is φ = 1310502196.

The previous prime is 1310502187. The next prime is 1310502283. The reversal of 1310502197 is 7912050131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1191561361 + 118940836 = 34519^2 + 10906^2 .

It is an emirp because it is prime and its reverse (7912050131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1310502197 - 228 = 1042066741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1310502187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655251098 + 655251099.

It is an arithmetic number, because the mean of its divisors is an integer number (655251099).

Almost surely, 21310502197 is an apocalyptic number.

It is an amenable number.

1310502197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310502197 is an equidigital number, since it uses as much as digits as its factorization.

1310502197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 29.

The square root of 1310502197 is about 36200.8590643924. The cubic root of 1310502197 is about 1094.3239843688.

The spelling of 1310502197 in words is "one billion, three hundred ten million, five hundred two thousand, one hundred ninety-seven".