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634084285 = 5472698231
BaseRepresentation
bin100101110010110…
…101101110111101
31122012010211010011
4211302311232331
52244311144120
6142530343221
721466425142
oct4562655675
91565124104
10634084285
112a5a189aa
1215842ab11
13a14a0903
14602da3c9
153aa01c5a
hex25cb5bbd

634084285 has 8 divisors (see below), whose sum is σ = 777090816. Its totient is φ = 496474320.

The previous prime is 634084277. The next prime is 634084289. The reversal of 634084285 is 582480436.

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

It is not a de Polignac number, because 634084285 - 23 = 634084277 is a prime.

It is a super-2 number, since 2×6340842852 = 804125760967922450, 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 (634084289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1348881 + ... + 1349350.

It is an arithmetic number, because the mean of its divisors is an integer number (97136352).

Almost surely, 2634084285 is an apocalyptic number.

It is an amenable number.

634084285 is a deficient number, since it is larger than the sum of its proper divisors (143006531).

634084285 is a wasteful number, since it uses less digits than its factorization.

634084285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2698283.

The product of its (nonzero) digits is 184320, while the sum is 40.

The square root of 634084285 is about 25181.0302608928. The cubic root of 634084285 is about 859.1104399251.

The spelling of 634084285 in words is "six hundred thirty-four million, eighty-four thousand, two hundred eighty-five".

Divisors: 1 5 47 235 2698231 13491155 126816857 634084285