Search a number
-
+
13378809801 = 372921968489
BaseRepresentation
bin11000111010111000…
…00110111111001001
31021112101120221211010
430131130012333021
5204344433403201
610051322154133
7652353002250
oct143534067711
937471527733
1013378809801
115745a97905
122714652949
131352a04206
1490cbb5797
1553482bbd6
hex31d706fc9

13378809801 has 16 divisors (see below), whose sum is σ = 21089750400. Its totient is φ = 7381411968.

The previous prime is 13378809797. The next prime is 13378809833. The reversal of 13378809801 is 10890887331.

It is not a de Polignac number, because 13378809801 - 22 = 13378809797 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13378809001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10983636 + ... + 10984853.

It is an arithmetic number, because the mean of its divisors is an integer number (1318109400).

Almost surely, 213378809801 is an apocalyptic number.

It is an amenable number.

13378809801 is a deficient number, since it is larger than the sum of its proper divisors (7710940599).

13378809801 is a wasteful number, since it uses less digits than its factorization.

13378809801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21968528.

The product of its (nonzero) digits is 290304, while the sum is 48.

The spelling of 13378809801 in words is "thirteen billion, three hundred seventy-eight million, eight hundred nine thousand, eight hundred one".

Divisors: 1 3 7 21 29 87 203 609 21968489 65905467 153779423 461338269 637086181 1911258543 4459603267 13378809801