Search a number
-
+
34343131 = 101340031
BaseRepresentation
bin1000001100000…
…0100011011011
32101121210220211
42003000203123
532242440011
63224031551
7564624514
oct203004333
971553824
1034343131
1118427559
12b6025b7
137165aa4
1447bda0b
153035b21
hex20c08db

34343131 has 4 divisors (see below), whose sum is σ = 34683264. Its totient is φ = 34003000.

The previous prime is 34343129. The next prime is 34343143. The reversal of 34343131 is 13134343.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13134343 = 101130043.

It is a cyclic number.

It is not a de Polignac number, because 34343131 - 21 = 34343129 is a prime.

It is a super-2 number, since 2×343431312 = 2358901293766322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34343161) 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, 169915 + ... + 170116.

It is an arithmetic number, because the mean of its divisors is an integer number (8670816).

Almost surely, 234343131 is an apocalyptic number.

34343131 is a deficient number, since it is larger than the sum of its proper divisors (340133).

34343131 is a wasteful number, since it uses less digits than its factorization.

34343131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340132.

The product of its digits is 1296, while the sum is 22.

The square root of 34343131 is about 5860.3012721190. The cubic root of 34343131 is about 325.0473493144.

Adding to 34343131 its reverse (13134343), we get a palindrome (47477474).

The spelling of 34343131 in words is "thirty-four million, three hundred forty-three thousand, one hundred thirty-one".

Divisors: 1 101 340031 34343131