Search a number
-
+
2388990047 is a prime number
BaseRepresentation
bin1000111001100101…
…0001100001011111
320011111022021020212
42032121101201133
514343040140142
61033020203035
7113126036363
oct21631214137
96144267225
102388990047
111016582644
1256809947b
132c0c324a2
141893d52a3
15deaedd82
hex8e65185f

2388990047 has 2 divisors, whose sum is σ = 2388990048. Its totient is φ = 2388990046.

The previous prime is 2388989969. The next prime is 2388990053. The reversal of 2388990047 is 7400998832.

It is a happy number.

2388990047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2388990047 - 28 = 2388989791 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2388989977 and 2388990004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2388990547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1194495023 + 1194495024.

It is an arithmetic number, because the mean of its divisors is an integer number (1194495024).

Almost surely, 22388990047 is an apocalyptic number.

2388990047 is a deficient number, since it is larger than the sum of its proper divisors (1).

2388990047 is an equidigital number, since it uses as much as digits as its factorization.

2388990047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 2388990047 is about 48877.2958233166. The cubic root of 2388990047 is about 1336.8154210838.

The spelling of 2388990047 in words is "two billion, three hundred eighty-eight million, nine hundred ninety thousand, forty-seven".