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34145213 = 239142867
BaseRepresentation
bin1000001001000…
…0001110111101
32101020202102112
42002100032331
532220121323
63215503405
7563141504
oct202201675
971222375
1034145213
1118301893
12b527b65
1370c698b
14476b83b
152ee7178
hex20903bd

34145213 has 4 divisors (see below), whose sum is σ = 34288320. Its totient is φ = 34002108.

The previous prime is 34145207. The next prime is 34145227. The reversal of 34145213 is 31254143.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 34145213 - 210 = 34144189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34145233) 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, 71195 + ... + 71672.

It is an arithmetic number, because the mean of its divisors is an integer number (8572080).

Almost surely, 234145213 is an apocalyptic number.

It is an amenable number.

34145213 is a deficient number, since it is larger than the sum of its proper divisors (143107).

34145213 is a wasteful number, since it uses less digits than its factorization.

34145213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143106.

The product of its digits is 1440, while the sum is 23.

The square root of 34145213 is about 5843.3905397466. The cubic root of 34145213 is about 324.4217346345.

Adding to 34145213 its reverse (31254143), we get a palindrome (65399356).

It can be divided in two parts, 341 and 45213, that added together give a palindrome (45554).

The spelling of 34145213 in words is "thirty-four million, one hundred forty-five thousand, two hundred thirteen".

Divisors: 1 239 142867 34145213