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344423231 = 1013410131
BaseRepresentation
bin10100100001110…
…111101100111111
3220000002111211222
4110201313230333
51201133020411
654102103555
711351356235
oct2441675477
9800074758
10344423231
111674662a9
129741abbb
1356482a39
1433a58955
15203864db
hex14877b3f

344423231 has 4 divisors (see below), whose sum is σ = 347833464. Its totient is φ = 341013000.

The previous prime is 344423207. The next prime is 344423267. The reversal of 344423231 is 132324443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132324443 = 1011310143.

It is a cyclic number.

It is not a de Polignac number, because 344423231 - 222 = 340228927 is a prime.

It is a super-2 number, since 2×3444232312 = 237254724104958722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 344423231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344423531) 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, 1704965 + ... + 1705166.

It is an arithmetic number, because the mean of its divisors is an integer number (86958366).

Almost surely, 2344423231 is an apocalyptic number.

344423231 is a deficient number, since it is larger than the sum of its proper divisors (3410233).

344423231 is a wasteful number, since it uses less digits than its factorization.

344423231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3410232.

The product of its digits is 6912, while the sum is 26.

The square root of 344423231 is about 18558.6430269026. The cubic root of 344423231 is about 700.9668483165.

Adding to 344423231 its reverse (132324443), we get a palindrome (476747674).

It can be divided in two parts, 34442 and 3231, that added together give a palindrome (37673).

The spelling of 344423231 in words is "three hundred forty-four million, four hundred twenty-three thousand, two hundred thirty-one".

Divisors: 1 101 3410131 344423231