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2580931 is a prime number
BaseRepresentation
bin1001110110000111000011
311212010101001
421312013003
51130042211
6131152431
730636403
oct11660703
94763331
102580931
111503101
12a45717
136c49a2
144b2803
1535eac1
hex2761c3

2580931 has 2 divisors, whose sum is σ = 2580932. Its totient is φ = 2580930.

The previous prime is 2580917. The next prime is 2580937. The reversal of 2580931 is 1390852.

2580931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2580931 - 27 = 2580803 is a prime.

It is a super-2 number, since 2×25809312 = 13322409653522, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2580931.

It is not a weakly prime, because it can be changed into another prime (2580937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1290465 + 1290466.

It is an arithmetic number, because the mean of its divisors is an integer number (1290466).

22580931 is an apocalyptic number.

2580931 is a deficient number, since it is larger than the sum of its proper divisors (1).

2580931 is an equidigital number, since it uses as much as digits as its factorization.

2580931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 2580931 is about 1606.5276219225. The cubic root of 2580931 is about 137.1698924152.

The spelling of 2580931 in words is "two million, five hundred eighty thousand, nine hundred thirty-one".