Search a number
BaseRepresentation
bin10001111000000101100…
…101000111000001110100
311100102212002102022212111
4101320011211013001310
5130111333242321402
62340202154100404
7154516145633530
oct21700545070164
94312762368774
101228454260852
11433a9144a455
1217a0baa1a704
138bac5664950
1443659564bc0
1521e4cc829d7
hex11e05947074

1228454260852 has 48 divisors (see below), whose sum is σ = 2673178896640. Its totient is φ = 480971768832.

The previous prime is 1228454260823. The next prime is 1228454260871. The reversal of 1228454260852 is 2580624548221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1228454260796 and 1228454260805.

It is a congruent number.

It is an unprimeable number.

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, 17360952 + ... + 17431567.

Almost surely, 21228454260852 is an apocalyptic number.

It is an amenable number.

1228454260852 is an abundant number, since it is smaller than the sum of its proper divisors (1444724635788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1228454260852 is a wasteful number, since it uses less digits than its factorization.

1228454260852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34792640 (or 34792638 counting only the distinct ones).

The product of its (nonzero) digits is 2457600, while the sum is 49.

The spelling of 1228454260852 in words is "one trillion, two hundred twenty-eight billion, four hundred fifty-four million, two hundred sixty thousand, eight hundred fifty-two".