Search a number
-
+
13889108463 = 3234115731271
BaseRepresentation
bin11001110111101101…
…01111100111101111
31022211221210210222120
430323312233213233
5211421102432323
610214111444023
71001120321406
oct147366574757
938757723876
1013889108463
11598804883a
122837526613
131404653a99
1495a88c63d
1556452b5e3
hex33bdaf9ef

13889108463 has 32 divisors (see below), whose sum is σ = 19922015232. Its totient is φ = 8585491200.

The previous prime is 13889108437. The next prime is 13889108473. The reversal of 13889108463 is 36480198831.

It is not a de Polignac number, because 13889108463 - 216 = 13889042927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13889108473) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 428518 + ... + 459788.

It is an arithmetic number, because the mean of its divisors is an integer number (622562976).

Almost surely, 213889108463 is an apocalyptic number.

13889108463 is a deficient number, since it is larger than the sum of its proper divisors (6032906769).

13889108463 is a wasteful number, since it uses less digits than its factorization.

13889108463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31495.

The product of its (nonzero) digits is 995328, while the sum is 51.

The spelling of 13889108463 in words is "thirteen billion, eight hundred eighty-nine million, one hundred eight thousand, four hundred sixty-three".

Divisors: 1 3 23 41 69 123 157 471 943 2829 3611 6437 10833 19311 31271 93813 148051 444153 719233 1282111 2157699 3846333 4909547 14728641 29488553 88465659 112919581 201291427 338758743 603874281 4629702821 13889108463