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34453213 = 191813327
BaseRepresentation
bin1000001101101…
…1011011011101
32101211101220221
42003123123131
532310000323
63230241341
7565563454
oct203333335
971741827
1034453213
11184a2233
12b656251
1371a3c22
14480bb9b
15305855d
hex20db6dd

34453213 has 4 divisors (see below), whose sum is σ = 36266560. Its totient is φ = 32639868.

The previous prime is 34453201. The next prime is 34453259. The reversal of 34453213 is 31235443.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31235443 = 171837379.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-34453213 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 (34453273) 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, 906645 + ... + 906682.

It is an arithmetic number, because the mean of its divisors is an integer number (9066640).

Almost surely, 234453213 is an apocalyptic number.

It is an amenable number.

34453213 is a deficient number, since it is larger than the sum of its proper divisors (1813347).

34453213 is a wasteful number, since it uses less digits than its factorization.

34453213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1813346.

The product of its digits is 4320, while the sum is 25.

The square root of 34453213 is about 5869.6859370839. The cubic root of 34453213 is about 325.3942765162.

Adding to 34453213 its reverse (31235443), we get a palindrome (65688656).

The spelling of 34453213 in words is "thirty-four million, four hundred fifty-three thousand, two hundred thirteen".

Divisors: 1 19 1813327 34453213