Search a number
BaseRepresentation
bin111111011111010000111
310220200202112
413323322013
51013033031
6112331235
723453165
oct7737207
93820675
102080391
1111a1035
12843b1b
1357ac01
143c2235
152b162b
hex1fbe87

2080391 has 2 divisors, whose sum is σ = 2080392. Its totient is φ = 2080390.

The previous prime is 2080363. The next prime is 2080423. The reversal of 2080391 is 1930802.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2080391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2080321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1040195 + 1040196.

It is an arithmetic number, because the mean of its divisors is an integer number (1040196).

22080391 is an apocalyptic number.

2080391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2080391 is an equidigital number, since it uses as much as digits as its factorization.

2080391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 2080391 is about 1442.3560586762. The cubic root of 2080391 is about 127.6580840632.

The spelling of 2080391 in words is "two million, eighty thousand, three hundred ninety-one".