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2887001 = 131371621
BaseRepresentation
bin1011000000110101011001
312102200012222
423000311121
51214341001
6141513425
733352625
oct13006531
95380188
102887001
1116a2057
12b72875
137a10b0
14552185
153c061b
hex2c0d59

2887001 has 8 divisors (see below), whose sum is σ = 3133704. Its totient is φ = 2643840.

The previous prime is 2886997. The next prime is 2887007. The reversal of 2887001 is 1007882.

It can be written as a sum of positive squares in 4 ways, for example, as 403225 + 2483776 = 635^2 + 1576^2 .

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 2887001 - 22 = 2886997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2887007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 971 + ... + 2591.

It is an arithmetic number, because the mean of its divisors is an integer number (391713).

22887001 is an apocalyptic number.

It is an amenable number.

2887001 is a deficient number, since it is larger than the sum of its proper divisors (246703).

2887001 is a wasteful number, since it uses less digits than its factorization.

2887001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771.

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 2887001 is about 1699.1177122260. The cubic root of 2887001 is about 142.3909250466.

The spelling of 2887001 in words is "two million, eight hundred eighty-seven thousand, one".

Divisors: 1 13 137 1621 1781 21073 222077 2887001