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11285271 = 333197139
BaseRepresentation
bin101011000011…
…001100010111
3210020100111000
4223003030113
510342112041
61041514343
7164631444
oct53031427
923210430
1011285271
116408878
1239429b3
13245189a
1416da9cb
15ecdbb6
hexac3317

11285271 has 32 divisors (see below), whose sum is σ = 17561600. Its totient is φ = 7153920.

The previous prime is 11285243. The next prime is 11285273. The reversal of 11285271 is 17258211.

11285271 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11285271 - 29 = 11284759 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11285273) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81120 + ... + 81258.

It is an arithmetic number, because the mean of its divisors is an integer number (548800).

Almost surely, 211285271 is an apocalyptic number.

11285271 is a deficient number, since it is larger than the sum of its proper divisors (6276329).

11285271 is a wasteful number, since it uses less digits than its factorization.

11285271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 270 counting only the distinct ones).

The product of its digits is 1120, while the sum is 27.

The square root of 11285271 is about 3359.3557418053. The cubic root of 11285271 is about 224.3041613677.

The spelling of 11285271 in words is "eleven million, two hundred eighty-five thousand, two hundred seventy-one".

Divisors: 1 3 9 27 31 93 97 139 279 291 417 837 873 1251 2619 3007 3753 4309 9021 12927 13483 27063 38781 40449 81189 116343 121347 364041 417973 1253919 3761757 11285271