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2131882 = 21065941
BaseRepresentation
bin1000001000011110101010
311000022101121
420020132222
51021210012
6113405454
724056254
oct10103652
94008347
102131882
111226795
1286988a
1359848c
143d6cd4
152c1a07
hex2087aa

2131882 has 4 divisors (see below), whose sum is σ = 3197826. Its totient is φ = 1065940.

The previous prime is 2131867. The next prime is 2131907. The reversal of 2131882 is 2881312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1212201 + 919681 = 1101^2 + 959^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532969 + ... + 532972.

22131882 is an apocalyptic number.

2131882 is a deficient number, since it is larger than the sum of its proper divisors (1065944).

2131882 is a wasteful number, since it uses less digits than its factorization.

2131882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065943.

The product of its digits is 768, while the sum is 25.

The square root of 2131882 is about 1460.0965721486. The cubic root of 2131882 is about 128.7027186806.

The spelling of 2131882 in words is "two million, one hundred thirty-one thousand, eight hundred eighty-two".

Divisors: 1 2 1065941 2131882