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349348459 = 1918386761
BaseRepresentation
bin10100110100101…
…010001001101011
3220100100201222211
4110310222021223
51203413122314
654355425551
711441261425
oct2464521153
9810321884
10349348459
1116a21a739
1298bb52b7
13574b8785
143457b815
1520a0a9c4
hex14d2a26b

349348459 has 4 divisors (see below), whose sum is σ = 367735240. Its totient is φ = 330961680.

The previous prime is 349348457. The next prime is 349348463. The reversal of 349348459 is 954843943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 954843943 = 1009946327.

It is a cyclic number.

It is not a de Polignac number, because 349348459 - 21 = 349348457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349348457) 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, 9193362 + ... + 9193399.

It is an arithmetic number, because the mean of its divisors is an integer number (91933810).

Almost surely, 2349348459 is an apocalyptic number.

349348459 is a deficient number, since it is larger than the sum of its proper divisors (18386781).

349348459 is a wasteful number, since it uses less digits than its factorization.

349348459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18386780.

The product of its digits is 1866240, while the sum is 49.

The square root of 349348459 is about 18690.8656567854. The cubic root of 349348459 is about 704.2923059518.

The spelling of 349348459 in words is "three hundred forty-nine million, three hundred forty-eight thousand, four hundred fifty-nine".

Divisors: 1 19 18386761 349348459