Search a number
-
+
13388750471 = 73918117389
BaseRepresentation
bin11000111100000100…
…00001111010000111
31021120002021222212002
430132002001322013
5204410010003341
610052315215515
7652533333635
oct143602017207
937502258762
1013388750471
115750667438
122717a4759b
131354aa4a75
14910242355
1553564229b
hex31e081e87

13388750471 has 4 divisors (see below), whose sum is σ = 13406868600. Its totient is φ = 13370632344.

The previous prime is 13388750467. The next prime is 13388750483. The reversal of 13388750471 is 17405788331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13388750471 - 22 = 13388750467 is a prime.

It is a super-3 number, since 3×133887504713 (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13388750971) 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, 9057956 + ... + 9059433.

It is an arithmetic number, because the mean of its divisors is an integer number (3351717150).

Almost surely, 213388750471 is an apocalyptic number.

13388750471 is a deficient number, since it is larger than the sum of its proper divisors (18118129).

13388750471 is an equidigital number, since it uses as much as digits as its factorization.

13388750471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18118128.

The product of its (nonzero) digits is 564480, while the sum is 47.

The spelling of 13388750471 in words is "thirteen billion, three hundred eighty-eight million, seven hundred fifty thousand, four hundred seventy-one".

Divisors: 1 739 18117389 13388750471