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34130231 = 125927109
BaseRepresentation
bin1000001000110…
…0100100110111
32101012222212122
42002030210313
532214131411
63215310155
7563050022
oct202144467
971188778
1034130231
11182a1603
12b51b35b
1370bcc05
1447661b9
152ee29db
hex208c937

34130231 has 4 divisors (see below), whose sum is σ = 34158600. Its totient is φ = 34101864.

The previous prime is 34130221. The next prime is 34130233. The reversal of 34130231 is 13203143.

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: 13203143 = 29694447.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-34130231 is a prime.

It is a super-2 number, since 2×341302312 = 2329745336226722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34130233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12296 + ... + 14813.

It is an arithmetic number, because the mean of its divisors is an integer number (8539650).

Almost surely, 234130231 is an apocalyptic number.

34130231 is a deficient number, since it is larger than the sum of its proper divisors (28369).

34130231 is a wasteful number, since it uses less digits than its factorization.

34130231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28368.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 34130231 is about 5842.1084378844. The cubic root of 34130231 is about 324.3742785193.

Adding to 34130231 its reverse (13203143), we get a palindrome (47333374).

The spelling of 34130231 in words is "thirty-four million, one hundred thirty thousand, two hundred thirty-one".

Divisors: 1 1259 27109 34130231