Search a number
-
+
12148800825881 = 26945162828349
BaseRepresentation
bin1011000011001001110011…
…1101010010101000011001
31121000102011211002021000202
42300302130331102220121
53043021221002412011
641501025420111545
72362502416115216
oct260623475225031
947012154067022
1012148800825881
113964306390765
1214426289955b5
136a181c6a6755
1430000ddb6b0d
151610415c923b
hexb0c9cf52a19

12148800825881 has 4 divisors (see below), whose sum is σ = 12193963654500. Its totient is φ = 12103637997264.

The previous prime is 12148800825859. The next prime is 12148800825901. The reversal of 12148800825881 is 18852800884121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6894253227481 + 5254547598400 = 2625691^2 + 2292280^2 .

It is a cyclic number.

It is not a de Polignac number, because 12148800825881 - 210 = 12148800824857 is a prime.

It is a super-2 number, since 2×121488008258812 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12148800855881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22581413906 + ... + 22581414443.

It is an arithmetic number, because the mean of its divisors is an integer number (3048490913625).

Almost surely, 212148800825881 is an apocalyptic number.

It is an amenable number.

12148800825881 is a deficient number, since it is larger than the sum of its proper divisors (45162828619).

12148800825881 is an equidigital number, since it uses as much as digits as its factorization.

12148800825881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45162828618.

The product of its (nonzero) digits is 2621440, while the sum is 56.

The spelling of 12148800825881 in words is "twelve trillion, one hundred forty-eight billion, eight hundred million, eight hundred twenty-five thousand, eight hundred eighty-one".

Divisors: 1 269 45162828349 12148800825881