Search a number
-
+
34242431 = 48770313
BaseRepresentation
bin1000001010011…
…1111101111111
32101102200210012
42002213331333
532231224211
63221533435
7564025106
oct202477577
971380705
1034242431
1118368933
12b57427b
13712bcc2
14479503d
153015d8b
hex20a7f7f

34242431 has 4 divisors (see below), whose sum is σ = 34313232. Its totient is φ = 34171632.

The previous prime is 34242407. The next prime is 34242443. The reversal of 34242431 is 13424243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13424243 = 71917749.

It is a cyclic number.

It is not a de Polignac number, because 34242431 - 222 = 30048127 is a prime.

It is a super-2 number, since 2×342424312 = 2345088161579522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34242397 and 34242406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34242401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34670 + ... + 35643.

It is an arithmetic number, because the mean of its divisors is an integer number (8578308).

Almost surely, 234242431 is an apocalyptic number.

34242431 is a deficient number, since it is larger than the sum of its proper divisors (70801).

34242431 is an equidigital number, since it uses as much as digits as its factorization.

34242431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70800.

The product of its digits is 2304, while the sum is 23.

The square root of 34242431 is about 5851.7032563178. The cubic root of 34242431 is about 324.7293399428.

Adding to 34242431 its reverse (13424243), we get a palindrome (47666674).

The spelling of 34242431 in words is "thirty-four million, two hundred forty-two thousand, four hundred thirty-one".

Divisors: 1 487 70313 34242431