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2187132 = 223182261
BaseRepresentation
bin1000010101111101111100
311010010011220
420111331330
51024442012
6114513340
724406323
oct10257574
94103156
102187132
111264252
12895850
135b767c
1440d0ba
152d308c
hex215f7c

2187132 has 12 divisors (see below), whose sum is σ = 5103336. Its totient is φ = 729040.

The previous prime is 2187121. The next prime is 2187149. The reversal of 2187132 is 2317812.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91119 + ... + 91142.

It is an arithmetic number, because the mean of its divisors is an integer number (425278).

22187132 is an apocalyptic number.

It is an amenable number.

2187132 is an abundant number, since it is smaller than the sum of its proper divisors (2916204).

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

2187132 is a wasteful number, since it uses less digits than its factorization.

2187132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182268 (or 182266 counting only the distinct ones).

The product of its digits is 672, while the sum is 24.

The square root of 2187132 is about 1478.8955338360. The cubic root of 2187132 is about 129.8050727558.

It can be divided in two parts, 21 and 87132, that added together give a triangular number (87153 = T417).

The spelling of 2187132 in words is "two million, one hundred eighty-seven thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 182261 364522 546783 729044 1093566 2187132