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56985271 = 727729389
BaseRepresentation
bin1101100101100…
…0011010110111
310222020011002121
43121120122313
5104042012041
65353220411
71261236550
oct331303267
9128204077
1056985271
112a191972
1217101707
13ba629c5
1477d5327
1550097d1
hex36586b7

56985271 has 8 divisors (see below), whose sum is σ = 65363360. Its totient is φ = 48666528.

The previous prime is 56985259. The next prime is 56985317. The reversal of 56985271 is 17258965.

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

It is a cyclic number.

It is not a de Polignac number, because 56985271 - 213 = 56977079 is a prime.

It is a super-2 number, since 2×569852712 = 6494642221886882, 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 (56985221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12756 + ... + 16633.

It is an arithmetic number, because the mean of its divisors is an integer number (8170420).

Almost surely, 256985271 is an apocalyptic number.

56985271 is a deficient number, since it is larger than the sum of its proper divisors (8378089).

56985271 is a wasteful number, since it uses less digits than its factorization.

56985271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29673.

The product of its digits is 151200, while the sum is 43.

The square root of 56985271 is about 7548.8589203932. The cubic root of 56985271 is about 384.8169613988.

The spelling of 56985271 in words is "fifty-six million, nine hundred eighty-five thousand, two hundred seventy-one".

Divisors: 1 7 277 1939 29389 205723 8140753 56985271