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1384423369 = 7197774767
BaseRepresentation
bin101001010000100…
…1001111111001001
310120111000222211121
41102201021333021
510313403021434
6345212555241
746210255510
oct12241117711
93514028747
101384423369
1165051a84a
12327782b21
13190a86834
14d1c19677
15818197b4
hex52849fc9

1384423369 has 4 divisors (see below), whose sum is σ = 1582198144. Its totient is φ = 1186648596.

The previous prime is 1384423361. The next prime is 1384423379. The reversal of 1384423369 is 9633244831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1384423369 - 23 = 1384423361 is a prime.

It is a super-2 number, since 2×13844233692 = 3833256129266620322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1384423361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98887377 + ... + 98887390.

It is an arithmetic number, because the mean of its divisors is an integer number (395549536).

Almost surely, 21384423369 is an apocalyptic number.

It is an amenable number.

1384423369 is a deficient number, since it is larger than the sum of its proper divisors (197774775).

1384423369 is an equidigital number, since it uses as much as digits as its factorization.

1384423369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197774774.

The product of its digits is 373248, while the sum is 43.

The square root of 1384423369 is about 37207.8401549996. The cubic root of 1384423369 is about 1114.5245532041.

The spelling of 1384423369 in words is "one billion, three hundred eighty-four million, four hundred twenty-three thousand, three hundred sixty-nine".

Divisors: 1 7 197774767 1384423369