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344570993 = 13149177889
BaseRepresentation
bin10100100010011…
…011110001110001
3220000101000112122
4110202123301301
51201202232433
654105204025
711352543104
oct2442336161
9800330478
10344570993
11167557318
1297490615
1356505080
1433a9673b
15203b5198
hex1489bc71

344570993 has 8 divisors (see below), whose sum is σ = 373569000. Its totient is φ = 315929088.

The previous prime is 344570971. The next prime is 344570999. The reversal of 344570993 is 399075443.

It can be written as a sum of positive squares in 4 ways, for example, as 2024929 + 342546064 = 1423^2 + 18508^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 344570993 - 218 = 344308849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (344570999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87008 + ... + 90881.

It is an arithmetic number, because the mean of its divisors is an integer number (46696125).

Almost surely, 2344570993 is an apocalyptic number.

It is an amenable number.

344570993 is a deficient number, since it is larger than the sum of its proper divisors (28998007).

344570993 is a wasteful number, since it uses less digits than its factorization.

344570993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178051.

The product of its (nonzero) digits is 408240, while the sum is 44.

The square root of 344570993 is about 18562.6235484104. The cubic root of 344570993 is about 701.0670752523.

The spelling of 344570993 in words is "three hundred forty-four million, five hundred seventy thousand, nine hundred ninety-three".

Divisors: 1 13 149 1937 177889 2312557 26505461 344570993