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344040943 = 1240127743
BaseRepresentation
bin10100100000011…
…010010111101111
3212222101002110011
4110200122113233
51201033302233
654045554051
711345204551
oct2440322757
9788332404
10344040943
11167225064
1297275927
135637aa2c
14339994d1
152030d0cd
hex1481a5ef

344040943 has 4 divisors (see below), whose sum is σ = 344081088. Its totient is φ = 344000800.

The previous prime is 344040929. The next prime is 344040989. The reversal of 344040943 is 349040443.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-344040943 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344040443) 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, 1471 + ... + 26272.

It is an arithmetic number, because the mean of its divisors is an integer number (86020272).

Almost surely, 2344040943 is an apocalyptic number.

344040943 is a deficient number, since it is larger than the sum of its proper divisors (40145).

344040943 is a wasteful number, since it uses less digits than its factorization.

344040943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40144.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 344040943 is about 18548.3407074595. The cubic root of 344040943 is about 700.7074093518.

The spelling of 344040943 in words is "three hundred forty-four million, forty thousand, nine hundred forty-three".

Divisors: 1 12401 27743 344040943