Search a number
-
+
123530319361 = 229758971081
BaseRepresentation
bin111001100001011111…
…0110001011000000001
3102210212001002102020101
41303002332301120001
54010442230204421
6132425443242401
711632124250451
oct1630276613001
9383761072211
10123530319361
1148430710329
121bb36079401
13b85870b137
145d9c157d61
15332eda1191
hex1cc2fb1601

123530319361 has 8 divisors (see below), whose sum is σ = 124087847400. Its totient is φ = 122972949120.

The previous prime is 123530319329. The next prime is 123530319377. The reversal of 123530319361 is 163913035321.

It can be written as a sum of positive squares in 4 ways, for example, as 27007635600 + 96522683761 = 164340^2 + 310681^2 .

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 123530319361 - 25 = 123530319329 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123530319361.

It is not an unprimeable number, because it can be changed into a prime (123530319301) 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 7 ways as a sum of consecutive naturals, for example, 1702341 + ... + 1773421.

It is an arithmetic number, because the mean of its divisors is an integer number (15510980925).

Almost surely, 2123530319361 is an apocalyptic number.

It is an amenable number.

123530319361 is a deficient number, since it is larger than the sum of its proper divisors (557528039).

123530319361 is an equidigital number, since it uses as much as digits as its factorization.

123530319361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78899.

The product of its (nonzero) digits is 43740, while the sum is 37.

The spelling of 123530319361 in words is "one hundred twenty-three billion, five hundred thirty million, three hundred nineteen thousand, three hundred sixty-one".

Divisors: 1 229 7589 71081 1737881 16277549 539433709 123530319361