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345037441 = 749291063
BaseRepresentation
bin10100100100001…
…101101010000001
3220001020201101111
4110210031222001
51201312144231
654123203321
711356525030
oct2444155201
9801221344
10345037441
11167845811
1297676541
1356639488
1433b78717
15204584b1
hex1490da81

345037441 has 4 divisors (see below), whose sum is σ = 394328512. Its totient is φ = 295746372.

The previous prime is 345037339. The next prime is 345037453. The reversal of 345037441 is 144730543.

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: 144730543 = 197617397.

It is a cyclic number.

It is not a de Polignac number, because 345037441 - 213 = 345029249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345037241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24645525 + ... + 24645538.

It is an arithmetic number, because the mean of its divisors is an integer number (98582128).

Almost surely, 2345037441 is an apocalyptic number.

It is an amenable number.

345037441 is a deficient number, since it is larger than the sum of its proper divisors (49291071).

345037441 is an equidigital number, since it uses as much as digits as its factorization.

345037441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49291070.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 345037441 is about 18575.1834715030. The cubic root of 345037441 is about 701.3832789698.

Adding to 345037441 its reverse (144730543), we get a palindrome (489767984).

The spelling of 345037441 in words is "three hundred forty-five million, thirty-seven thousand, four hundred forty-one".

Divisors: 1 7 49291063 345037441