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34286320 = 245428579
BaseRepresentation
bin1000001011001…
…0101011110000
32101111220222201
42002302223300
532234130240
63222512544
7564300055
oct202625360
971456881
1034286320
1118398902
12b595754
137145c83
1447a702c
153023d9a
hex20b2af0

34286320 has 20 divisors (see below), whose sum is σ = 79715880. Its totient is φ = 13714496.

The previous prime is 34286281. The next prime is 34286321. The reversal of 34286320 is 2368243.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34286321) 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, 214210 + ... + 214369.

It is an arithmetic number, because the mean of its divisors is an integer number (3985794).

Almost surely, 234286320 is an apocalyptic number.

It is an amenable number.

34286320 is an abundant number, since it is smaller than the sum of its proper divisors (45429560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

34286320 is a wasteful number, since it uses less digits than its factorization.

34286320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428592 (or 428586 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 34286320 is about 5855.4521601666. The cubic root of 34286320 is about 324.8680174150.

The spelling of 34286320 in words is "thirty-four million, two hundred eighty-six thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 428579 857158 1714316 2142895 3428632 4285790 6857264 8571580 17143160 34286320