Search a number
-
+
13200044431 = 76130913453
BaseRepresentation
bin11000100101100100…
…01011000110001111
31021001221012201211111
430102302023012033
5204013202410211
610021454432451
7645052345360
oct142262130617
937057181744
1013200044431
115664098832
122684802727
1313249732a2
148d315db67
15523cb9421
hex312c8b18f

13200044431 has 8 divisors (see below), whose sum is σ = 15333073184. Its totient is φ = 11128842720.

The previous prime is 13200044419. The next prime is 13200044437. The reversal of 13200044431 is 13444000231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13200044431 - 27 = 13200044303 is a prime.

It is a super-2 number, since 2×132000444312 (a number of 21 digits) contains 22 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 (13200044437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15456300 + ... + 15457153.

It is an arithmetic number, because the mean of its divisors is an integer number (1916634148).

Almost surely, 213200044431 is an apocalyptic number.

13200044431 is a deficient number, since it is larger than the sum of its proper divisors (2133028753).

13200044431 is an equidigital number, since it uses as much as digits as its factorization.

13200044431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30913521.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 13200044431 its reverse (13444000231), we get a palindrome (26644044662).

The spelling of 13200044431 in words is "thirteen billion, two hundred million, forty-four thousand, four hundred thirty-one".

Divisors: 1 7 61 427 30913453 216394171 1885720633 13200044431