Search a number
-
+
700007813 is a prime number
BaseRepresentation
bin101001101110010…
…100010110000101
31210210012002012022
4221232110112011
52413200222223
6153243332525
723226653051
oct5156242605
91723162168
10700007813
1132a15525a
12176521145
13b2042b0b
1468d7ac61
15416c4ac8
hex29b94585

700007813 has 2 divisors, whose sum is σ = 700007814. Its totient is φ = 700007812.

The previous prime is 700007723. The next prime is 700007831. The reversal of 700007813 is 318700007.

Together with next prime (700007831) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 518108644 + 181899169 = 22762^2 + 13487^2 .

It is an emirp because it is prime and its reverse (318700007) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 700007813 - 216 = 699942277 is a prime.

It is a super-2 number, since 2×7000078132 = 980021876522085938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (700007843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350003906 + 350003907.

It is an arithmetic number, because the mean of its divisors is an integer number (350003907).

Almost surely, 2700007813 is an apocalyptic number.

It is an amenable number.

700007813 is a deficient number, since it is larger than the sum of its proper divisors (1).

700007813 is an equidigital number, since it uses as much as digits as its factorization.

700007813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 700007813 is about 26457.6607620553. The cubic root of 700007813 is about 887.9073051560.

The spelling of 700007813 in words is "seven hundred million, seven thousand, eight hundred thirteen".