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1208325081 = 3402775027
BaseRepresentation
bin100100000000101…
…1001001111011001
310010012200021101210
41020001121033121
54433312400311
6315522333333
741641410435
oct11001311731
93105607353
101208325081
11570082577
122987ba249
1316344a872
14b66999c5
15711323a6
hex480593d9

1208325081 has 4 divisors (see below), whose sum is σ = 1611100112. Its totient is φ = 805550052.

The previous prime is 1208325071. The next prime is 1208325089. The reversal of 1208325081 is 1805238021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1208325081 - 26 = 1208325017 is a prime.

It is a super-2 number, since 2×12083250812 = 2920099002747313122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1208325089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201387511 + ... + 201387516.

It is an arithmetic number, because the mean of its divisors is an integer number (402775028).

Almost surely, 21208325081 is an apocalyptic number.

It is an amenable number.

1208325081 is a deficient number, since it is larger than the sum of its proper divisors (402775031).

1208325081 is an equidigital number, since it uses as much as digits as its factorization.

1208325081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402775030.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 1208325081 is about 34760.9706567581. The cubic root of 1208325081 is about 1065.1103299924.

The spelling of 1208325081 in words is "one billion, two hundred eight million, three hundred twenty-five thousand, eighty-one".

Divisors: 1 3 402775027 1208325081