Search a number
-
+
13453352143 = 73117150221
BaseRepresentation
bin11001000011110000…
…11101110011001111
31021201120212002200121
430201320131303033
5210023024232033
610102544005411
7654246415000
oct144170356317
937646762617
1013453352143
115784080650
122735600867
1313652a33ca
14918a5b1a7
1553b15362d
hex321e1dccf

13453352143 has 32 divisors (see below), whose sum is σ = 17356723200. Its totient is φ = 10335276000.

The previous prime is 13453352123. The next prime is 13453352147. The reversal of 13453352143 is 34125335431.

It is not a de Polignac number, because 13453352143 - 229 = 12916481231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13453352099 and 13453352108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13453352147) 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 31 ways as a sum of consecutive naturals, for example, 242773 + ... + 292993.

It is an arithmetic number, because the mean of its divisors is an integer number (542397600).

Almost surely, 213453352143 is an apocalyptic number.

13453352143 is a deficient number, since it is larger than the sum of its proper divisors (3903371057).

13453352143 is an equidigital number, since it uses as much as digits as its factorization.

13453352143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50324 (or 50310 counting only the distinct ones).

The product of its digits is 64800, while the sum is 34.

Adding to 13453352143 its reverse (34125335431), we get a palindrome (47578687574).

The spelling of 13453352143 in words is "thirteen billion, four hundred fifty-three million, three hundred fifty-two thousand, one hundred forty-three".

Divisors: 1 7 11 49 71 77 343 497 539 781 3479 3773 5467 24353 38269 50221 267883 351547 552431 2460829 3565691 3867017 17225803 24959837 27069119 39222601 174718859 189483833 274558207 1223032013 1921907449 13453352143