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271086820 = 22550326947
BaseRepresentation
bin10000001010000…
…111010011100100
3200220002122012121
4100022013103210
51023344234240
642522155324
76501125404
oct2012072344
9626078177
10271086820
1112a0265a4
1276952b44
1344216704
1428008804
1518bec04a
hex102874e4

271086820 has 24 divisors (see below), whose sum is σ = 570435264. Its totient is φ = 108215136.

The previous prime is 271086799. The next prime is 271086853. The reversal of 271086820 is 28680172.

It is an unprimeable number.

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, 3414 + ... + 23533.

It is an arithmetic number, because the mean of its divisors is an integer number (23768136).

Almost surely, 2271086820 is an apocalyptic number.

271086820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

271086820 is an abundant number, since it is smaller than the sum of its proper divisors (299348444).

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

271086820 is a wasteful number, since it uses less digits than its factorization.

271086820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27459 (or 27457 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 271086820 is about 16464.7143916923. The cubic root of 271086820 is about 647.1964618336.

The spelling of 271086820 in words is "two hundred seventy-one million, eighty-six thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 503 1006 2012 2515 5030 10060 26947 53894 107788 134735 269470 538940 13554341 27108682 54217364 67771705 135543410 271086820