Search a number
-
+
131224043001 = 31719382335423
BaseRepresentation
bin111101000110110001…
…1111111110111111001
3110112201020012001221210
41322031203333313321
54122221323334001
6140141122353333
712323565650562
oct1721543776771
9415636161853
10131224043001
1150719607817
12215227bb849
13c4b366672c
1464cbc97169
15363054cdd6
hex1e8d8ffdf9

131224043001 has 32 divisors (see below), whose sum is σ = 195064381440. Its totient is φ = 77980541184.

The previous prime is 131224042997. The next prime is 131224043011. The reversal of 131224043001 is 100340422131.

It is not a de Polignac number, because 131224043001 - 22 = 131224042997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131224043011) 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, 3686776 + ... + 3722198.

It is an arithmetic number, because the mean of its divisors is an integer number (6095761920).

Almost surely, 2131224043001 is an apocalyptic number.

It is an amenable number.

131224043001 is a deficient number, since it is larger than the sum of its proper divisors (63840338439).

131224043001 is a wasteful number, since it uses less digits than its factorization.

131224043001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39285.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 131224043001 its reverse (100340422131), we get a palindrome (231564465132).

The spelling of 131224043001 in words is "one hundred thirty-one billion, two hundred twenty-four million, forty-three thousand, one".

Divisors: 1 3 17 19 51 57 323 969 3823 11469 35423 64991 72637 106269 194973 217911 602191 673037 1234829 1806573 2019111 3704487 11441629 34324887 135422129 406266387 2302176193 2573020451 6906528579 7719061353 43741347667 131224043001