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2166132 = 223180511
BaseRepresentation
bin1000010000110101110100
311002001101010
420100311310
51023304012
6114232220
724261153
oct10206564
94061333
102166132
11124a4a1
12885670
135aac47
1440559a
152cbc3c
hex210d74

2166132 has 12 divisors (see below), whose sum is σ = 5054336. Its totient is φ = 722040.

The previous prime is 2166127. The next prime is 2166137. The reversal of 2166132 is 2316612.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2166127) and next prime (2166137).

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

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 2166099 and 2166108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90244 + ... + 90267.

22166132 is an apocalyptic number.

It is an amenable number.

2166132 is an abundant number, since it is smaller than the sum of its proper divisors (2888204).

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

2166132 is a wasteful number, since it uses less digits than its factorization.

2166132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180518 (or 180516 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

The square root of 2166132 is about 1471.7785159459. The cubic root of 2166132 is about 129.3882898434.

The spelling of 2166132 in words is "two million, one hundred sixty-six thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 180511 361022 541533 722044 1083066 2166132