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2133887 = 72231367
BaseRepresentation
bin1000001000111101111111
311000102010212
420020331333
51021241022
6113423035
724065150
oct10107577
94012125
102133887
111228248
1286aa7b
13599372
143d7927
152c23e2
hex208f7f

2133887 has 8 divisors (see below), whose sum is σ = 2451456. Its totient is φ = 1819512.

The previous prime is 2133839. The next prime is 2133899. The reversal of 2133887 is 7883312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2133887 - 28 = 2133631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133487) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 878 + ... + 2244.

It is an arithmetic number, because the mean of its divisors is an integer number (306432).

22133887 is an apocalyptic number.

2133887 is a deficient number, since it is larger than the sum of its proper divisors (317569).

2133887 is a wasteful number, since it uses less digits than its factorization.

2133887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597.

The product of its digits is 8064, while the sum is 32.

The square root of 2133887 is about 1460.7830092112. The cubic root of 2133887 is about 128.7430536360.

The spelling of 2133887 in words is "two million, one hundred thirty-three thousand, eight hundred eighty-seven".

Divisors: 1 7 223 1367 1561 9569 304841 2133887