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349938361 = 647540863
BaseRepresentation
bin10100110110111…
…010001010111001
3220101110201012001
4110312322022321
51204041011421
654420221001
711446266313
oct2466721271
9811421161
10349938361
1116a592963
129923a761
1357664126
14346927b3
1520ac5691
hex14dba2b9

349938361 has 4 divisors (see below), whose sum is σ = 350479872. Its totient is φ = 349396852.

The previous prime is 349938301. The next prime is 349938367. The reversal of 349938361 is 163839943.

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: 163839943 = 1131449911.

It is a cyclic number.

It is not a de Polignac number, because 349938361 - 29 = 349937849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349938367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269785 + ... + 271078.

It is an arithmetic number, because the mean of its divisors is an integer number (87619968).

Almost surely, 2349938361 is an apocalyptic number.

It is an amenable number.

349938361 is a deficient number, since it is larger than the sum of its proper divisors (541511).

349938361 is an equidigital number, since it uses as much as digits as its factorization.

349938361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541510.

The product of its digits is 419904, while the sum is 46.

The square root of 349938361 is about 18706.6394897641. The cubic root of 349938361 is about 704.6885004494.

The spelling of 349938361 in words is "three hundred forty-nine million, nine hundred thirty-eight thousand, three hundred sixty-one".

Divisors: 1 647 540863 349938361