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2987141 is a prime number
BaseRepresentation
bin1011011001010010000101
312121202120212
423121102011
51231042031
6144005205
734250603
oct13312205
95552525
102987141
111760313
121000805
13807851
1457a873
153e012b
hex2d9485

2987141 has 2 divisors, whose sum is σ = 2987142. Its totient is φ = 2987140.

The previous prime is 2987113. The next prime is 2987143. The reversal of 2987141 is 1417892.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2819041 + 168100 = 1679^2 + 410^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2987141 is a prime.

It is a super-2 number, since 2×29871412 = 17846022707762, which contains 22 as substring.

Together with 2987143, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2987098 and 2987107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2987143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1493570 + 1493571.

It is an arithmetic number, because the mean of its divisors is an integer number (1493571).

22987141 is an apocalyptic number.

It is an amenable number.

2987141 is a deficient number, since it is larger than the sum of its proper divisors (1).

2987141 is an equidigital number, since it uses as much as digits as its factorization.

2987141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 32.

The square root of 2987141 is about 1728.3347476690. The cubic root of 2987141 is about 144.0185964923.

The spelling of 2987141 in words is "two million, nine hundred eighty-seven thousand, one hundred forty-one".