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2070581 is a prime number
BaseRepresentation
bin111111001100000110101
310220012022012
413321200311
51012224311
6112214005
723412452
oct7714065
93805265
102070581
111194727
1283a305
135765c6
143bc829
152ad78b
hex1f9835

2070581 has 2 divisors, whose sum is σ = 2070582. Its totient is φ = 2070580.

The previous prime is 2070569. The next prime is 2070587. The reversal of 2070581 is 1850702.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1416100 + 654481 = 1190^2 + 809^2 .

It is a cyclic number.

It is not a de Polignac number, because 2070581 - 26 = 2070517 is a prime.

It is a super-2 number, since 2×20705812 = 8574611355122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2070587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1035290 + 1035291.

It is an arithmetic number, because the mean of its divisors is an integer number (1035291).

22070581 is an apocalyptic number.

It is an amenable number.

2070581 is a deficient number, since it is larger than the sum of its proper divisors (1).

2070581 is an equidigital number, since it uses as much as digits as its factorization.

2070581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 2070581 is about 1438.9513542855. The cubic root of 2070581 is about 127.4571123214.

The spelling of 2070581 in words is "two million, seventy thousand, five hundred eighty-one".