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2897000 = 23532897
BaseRepresentation
bin1011000011010001101000
312110011221022
423003101220
51220201000
6142032012
733424031
oct13032150
95404838
102897000
1116a9617
12b78608
137a5802
14555a88
153c3585
hex2c3468

2897000 has 32 divisors (see below), whose sum is σ = 6781320. Its totient is φ = 1158400.

The previous prime is 2896979. The next prime is 2897003. The reversal of 2897000 is 7982.

It can be written as a sum of positive squares in 4 ways, for example, as 343396 + 2553604 = 586^2 + 1598^2 .

It is not an unprimeable number, because it can be changed into a prime (2897003) 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, 449 + ... + 2448.

22897000 is an apocalyptic number.

2897000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2897000 is an abundant number, since it is smaller than the sum of its proper divisors (3884320).

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

2897000 is a wasteful number, since it uses less digits than its factorization.

2897000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2918 (or 2904 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 2897000 is about 1702.0575783445. The cubic root of 2897000 is about 142.5551238463. Note that the first 3 decimals are identical.

The spelling of 2897000 in words is "two million, eight hundred ninety-seven thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 1000 2897 5794 11588 14485 23176 28970 57940 72425 115880 144850 289700 362125 579400 724250 1448500 2897000