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34505421 = 373157559
BaseRepresentation
bin1000001110100…
…0001011001101
32101221001112120
42003220023031
532313133141
63231323153
7566201616
oct203501315
971831476
1034505421
1118528485
12b6804b9
1371c1912
144822c0d
153068c66
hex20e82cd

34505421 has 8 divisors (see below), whose sum is σ = 46637760. Its totient is φ = 22688352.

The previous prime is 34505417. The next prime is 34505431. The reversal of 34505421 is 12450543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 34505421 - 22 = 34505417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 34505391 and 34505400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34505431) 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 7 ways as a sum of consecutive naturals, for example, 78561 + ... + 78998.

It is an arithmetic number, because the mean of its divisors is an integer number (5829720).

Almost surely, 234505421 is an apocalyptic number.

It is an amenable number.

34505421 is a deficient number, since it is larger than the sum of its proper divisors (12132339).

34505421 is a wasteful number, since it uses less digits than its factorization.

34505421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157635.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 34505421 is about 5874.1315102745. The cubic root of 34505421 is about 325.5585535093.

Adding to 34505421 its reverse (12450543), we get a palindrome (46955964).

It can be divided in two parts, 3450542 and 1, that added together give a palindrome (3450543).

The spelling of 34505421 in words is "thirty-four million, five hundred five thousand, four hundred twenty-one".

Divisors: 1 3 73 219 157559 472677 11501807 34505421