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271272 = 23389127
BaseRepresentation
bin1000010001110101000
3111210010010
41002032220
532140042
65451520
72206611
oct1021650
9453103
10271272
111758a1
12110ba0
1396621
1470c08
155559c
hex423a8

271272 has 32 divisors (see below), whose sum is σ = 691200. Its totient is φ = 88704.

The previous prime is 271261. The next prime is 271273. The reversal of 271272 is 272172.

It is an Ulam number.

It is a plaindrome in base 15.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (271273) by changing a digit.

271272 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2073 + ... + 2199.

It is an arithmetic number, because the mean of its divisors is an integer number (21600).

2271272 is an apocalyptic number.

It is an amenable number.

271272 is an abundant number, since it is smaller than the sum of its proper divisors (419928).

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

271272 is a wasteful number, since it uses less digits than its factorization.

271272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225 (or 221 counting only the distinct ones).

The product of its digits is 392, while the sum is 21.

The square root of 271272 is about 520.8377866476. The cubic root of 271272 is about 64.7343795397.

Subtracting 271272 from its reverse (272172), we obtain a square (900 = 302).

The spelling of 271272 in words is "two hundred seventy-one thousand, two hundred seventy-two", and thus it is an iban number.

Divisors: 1 2 3 4 6 8 12 24 89 127 178 254 267 356 381 508 534 712 762 1016 1068 1524 2136 3048 11303 22606 33909 45212 67818 90424 135636 271272