Search a number
-
+
13013231219 = 29599378117
BaseRepresentation
bin11000001111010011…
…00010011001110011
31020120220200122021122
430013221202121303
5203122341344334
65551142412455
7640323432422
oct140751423163
936526618248
1013013231219
1155786a224a
12263213112b
1312c5055221
148b64112b9
155126b732e
hex307a62673

13013231219 has 16 divisors (see below), whose sum is σ = 13706431200. Its totient is φ = 12336839424.

The previous prime is 13013231207. The next prime is 13013231239. The reversal of 13013231219 is 91213231031.

13013231219 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13013231219 - 220 = 13012182643 is a prime.

It is a super-2 number, since 2×130132312192 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13013231239) 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 in 15 ways as a sum of consecutive naturals, for example, 1599149 + ... + 1607265.

It is an arithmetic number, because the mean of its divisors is an integer number (856651950).

Almost surely, 213013231219 is an apocalyptic number.

13013231219 is a deficient number, since it is larger than the sum of its proper divisors (693199981).

13013231219 is an equidigital number, since it uses as much as digits as its factorization.

13013231219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9142.

The product of its (nonzero) digits is 972, while the sum is 26.

The spelling of 13013231219 in words is "thirteen billion, thirteen million, two hundred thirty-one thousand, two hundred nineteen".

Divisors: 1 29 59 937 1711 8117 27173 55283 235393 478903 1603207 7605629 13888187 220563241 448732111 13013231219