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2087893 = 11711783
BaseRepresentation
bin111111101101111010101
310221002001101
413331233111
51013303033
6112430101
723514103
oct7755725
93832041
102087893
1111a6735
12848331
13581452
143c4c73
152b397d
hex1fdbd5

2087893 has 4 divisors (see below), whose sum is σ = 2090848. Its totient is φ = 2084940.

The previous prime is 2087879. The next prime is 2087903. The reversal of 2087893 is 3987802.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2087893 - 25 = 2087861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2087593) 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, 280 + ... + 2062.

It is an arithmetic number, because the mean of its divisors is an integer number (522712).

22087893 is an apocalyptic number.

It is an amenable number.

2087893 is a deficient number, since it is larger than the sum of its proper divisors (2955).

2087893 is a wasteful number, since it uses less digits than its factorization.

2087893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2954.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 2087893 is about 1444.9543245376. The cubic root of 2087893 is about 127.8113472536.

The spelling of 2087893 in words is "two million, eighty-seven thousand, eight hundred ninety-three".

Divisors: 1 1171 1783 2087893