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119042405 = 523808481
BaseRepresentation
bin1110001100001…
…11000101100101
322021222222110222
413012013011211
5220433324110
615451254125
72643562256
oct706070545
9267888428
10119042405
1161218359
1233a4a345
131b8800c1
1411b4ab2d
15a6b6c55
hex7187165

119042405 has 4 divisors (see below), whose sum is σ = 142850892. Its totient is φ = 95233920.

The previous prime is 119042401. The next prime is 119042423. The reversal of 119042405 is 504240911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 504240911 = 4957101723.

It can be written as a sum of positive squares in 2 ways, for example, as 78872161 + 40170244 = 8881^2 + 6338^2 .

It is not a de Polignac number, because 119042405 - 22 = 119042401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (119042401) 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, 11904236 + ... + 11904245.

It is an arithmetic number, because the mean of its divisors is an integer number (35712723).

Almost surely, 2119042405 is an apocalyptic number.

It is an amenable number.

119042405 is a deficient number, since it is larger than the sum of its proper divisors (23808487).

119042405 is an equidigital number, since it uses as much as digits as its factorization.

119042405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23808486.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 119042405 is about 10910.6555715044. The cubic root of 119042405 is about 491.9268913887.

The spelling of 119042405 in words is "one hundred nineteen million, forty-two thousand, four hundred five".

Divisors: 1 5 23808481 119042405