Search a number
-
+
1310693 is a prime number
BaseRepresentation
bin100111111111111100101
32110120221012
410333333211
5313420233
644032005
714066156
oct4777745
92416835
101310693
1181581a
12532605
1336b777
1426192d
151ad548
hex13ffe5

1310693 has 2 divisors, whose sum is σ = 1310694. Its totient is φ = 1310692.

The previous prime is 1310681. The next prime is 1310719. The reversal of 1310693 is 3960131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 667489 + 643204 = 817^2 + 802^2 .

It is a cyclic number.

It is not a de Polignac number, because 1310693 - 26 = 1310629 is a prime.

It is a super-2 number, since 2×13106932 = 3435832280498, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1310633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655346 + 655347.

It is an arithmetic number, because the mean of its divisors is an integer number (655347).

21310693 is an apocalyptic number.

It is an amenable number.

1310693 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310693 is an equidigital number, since it uses as much as digits as its factorization.

1310693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 1310693 is about 1144.8550126544. The cubic root of 1310693 is about 109.4377091279.

It can be divided in two parts, 131069 and 3, that added together give a 17-th power (131072 = 217).

The spelling of 1310693 in words is "one million, three hundred ten thousand, six hundred ninety-three".