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2238344057 = 3172204647
BaseRepresentation
bin1000010101101010…
…0110101101111001
312202222211122210202
42011122212231321
514041004002212
61010035251545
7106316416265
oct20532465571
95688748722
102238344057
11a4953a024
12525749bb5
13298968551
141733bd0a5
15d17930c2
hex856a6b79

2238344057 has 4 divisors (see below), whose sum is σ = 2310548736. Its totient is φ = 2166139380.

The previous prime is 2238344029. The next prime is 2238344063. The reversal of 2238344057 is 7504438322.

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 a cyclic number.

It is not a de Polignac number, because 2238344057 - 26 = 2238343993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2238344057.

It is not an unprimeable number, because it can be changed into a prime (2238344257) 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, 36102293 + ... + 36102354.

It is an arithmetic number, because the mean of its divisors is an integer number (577637184).

Almost surely, 22238344057 is an apocalyptic number.

It is an amenable number.

2238344057 is a deficient number, since it is larger than the sum of its proper divisors (72204679).

2238344057 is an equidigital number, since it uses as much as digits as its factorization.

2238344057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72204678.

The product of its (nonzero) digits is 161280, while the sum is 38.

The square root of 2238344057 is about 47311.1409395292. The cubic root of 2238344057 is about 1308.1040220105.

The spelling of 2238344057 in words is "two billion, two hundred thirty-eight million, three hundred forty-four thousand, fifty-seven".

Divisors: 1 31 72204647 2238344057