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240819053 = 1912674687
BaseRepresentation
bin11100101101010…
…01101101101101
3121210010212122012
432112221231231
5443122202203
635521331005
75652633236
oct1626515555
9553125565
10240819053
11113a32a12
1268796a65
133ab798a7
1423daa08d
151621dbd8
hexe5a9b6d

240819053 has 4 divisors (see below), whose sum is σ = 253493760. Its totient is φ = 228144348.

The previous prime is 240819037. The next prime is 240819083. The reversal of 240819053 is 350918042.

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, and also an emirpimes, since its reverse is a distinct semiprime: 350918042 = 2175459021.

It is a cyclic number.

It is not a de Polignac number, because 240819053 - 24 = 240819037 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 (240819013) 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 3 ways as a sum of consecutive naturals, for example, 6337325 + ... + 6337362.

It is an arithmetic number, because the mean of its divisors is an integer number (63373440).

Almost surely, 2240819053 is an apocalyptic number.

It is an amenable number.

240819053 is a deficient number, since it is larger than the sum of its proper divisors (12674707).

240819053 is a wasteful number, since it uses less digits than its factorization.

240819053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12674706.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 240819053 is about 15518.3456914711. The cubic root of 240819053 is about 622.1526396549.

The spelling of 240819053 in words is "two hundred forty million, eight hundred nineteen thousand, fifty-three".

Divisors: 1 19 12674687 240819053