Search a number
-
+
20300000069 is a prime number
BaseRepresentation
bin10010111001111110…
…010110101101000101
31221101202000211222102
4102321332112231011
5313033300000234
613154203241445
71316024103446
oct227176265505
957352024872
1020300000069
118677903568
123b26519285
131bb68a577b
14da80992cd
157dc279c7e
hex4b9f96b45

20300000069 has 2 divisors, whose sum is σ = 20300000070. Its totient is φ = 20300000068.

The previous prime is 20300000009. The next prime is 20300000099. The reversal of 20300000069 is 96000000302.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18073575844 + 2226424225 = 134438^2 + 47185^2 .

It is a cyclic number.

It is not a de Polignac number, because 20300000069 - 224 = 20283222853 is a prime.

It is a super-2 number, since 2×203000000692 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20300000009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10150000034 + 10150000035.

It is an arithmetic number, because the mean of its divisors is an integer number (10150000035).

Almost surely, 220300000069 is an apocalyptic number.

It is an amenable number.

20300000069 is a deficient number, since it is larger than the sum of its proper divisors (1).

20300000069 is an equidigital number, since it uses as much as digits as its factorization.

20300000069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

The spelling of 20300000069 in words is "twenty billion, three hundred million, sixty-nine", and thus it is an aban number.