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2389708669 is a prime number
BaseRepresentation
bin1000111001110000…
…0000111101111101
320011112122210000111
42032130000331331
514343231134134
61033043430021
7113135121445
oct21634007575
96145583014
102389708669
111016a23547
12568385311
132c11245ca
14189541125
15debe1c64
hex8e700f7d

2389708669 has 2 divisors, whose sum is σ = 2389708670. Its totient is φ = 2389708668.

The previous prime is 2389708627. The next prime is 2389708709. The reversal of 2389708669 is 9668079832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2064339225 + 325369444 = 45435^2 + 18038^2 .

It is a cyclic number.

It is not a de Polignac number, because 2389708669 - 219 = 2389184381 is a prime.

It is a super-2 number, since 2×23897086692 = 11421415045387503122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2389708609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1194854334 + 1194854335.

It is an arithmetic number, because the mean of its divisors is an integer number (1194854335).

Almost surely, 22389708669 is an apocalyptic number.

It is an amenable number.

2389708669 is a deficient number, since it is larger than the sum of its proper divisors (1).

2389708669 is an equidigital number, since it uses as much as digits as its factorization.

2389708669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7838208, while the sum is 58.

The square root of 2389708669 is about 48884.6465569712. The cubic root of 2389708669 is about 1336.9494482451.

The spelling of 2389708669 in words is "two billion, three hundred eighty-nine million, seven hundred eight thousand, six hundred sixty-nine".