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34043431 = 281121151
BaseRepresentation
bin1000000111011…
…1011000100111
32101001120210211
42001313120213
532203342211
63213400251
7562235662
oct201673047
971046724
1034043431
1118242374
12b499087
13708c556
1447426d9
152ec6e21
hex2077627

34043431 has 4 divisors (see below), whose sum is σ = 34164864. Its totient is φ = 33922000.

The previous prime is 34043393. The next prime is 34043453. The reversal of 34043431 is 13434043.

34043431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13434043 = 71919149.

It is a cyclic number.

It is not a de Polignac number, because 34043431 - 215 = 34010663 is a prime.

It is a super-2 number, since 2×340434312 = 2317910388503522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) 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 (34043731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60295 + ... + 60856.

It is an arithmetic number, because the mean of its divisors is an integer number (8541216).

Almost surely, 234043431 is an apocalyptic number.

34043431 is a deficient number, since it is larger than the sum of its proper divisors (121433).

34043431 is a wasteful number, since it uses less digits than its factorization.

34043431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121432.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 34043431 is about 5834.6748838303. The cubic root of 34043431 is about 324.0990621999.

Adding to 34043431 its reverse (13434043), we get a palindrome (47477474).

The spelling of 34043431 in words is "thirty-four million, forty-three thousand, four hundred thirty-one".

Divisors: 1 281 121151 34043431