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20376841 is a prime number
BaseRepresentation
bin100110110111…
…0110100001001
31102100020202211
41031232310021
520204024331
62004425121
7335125462
oct115566411
942306684
1020376841
1110558471
1269a81a1
1342b5b04
1429c5d69
151bc78b1
hex136ed09

20376841 has 2 divisors, whose sum is σ = 20376842. Its totient is φ = 20376840.

The previous prime is 20376779. The next prime is 20376847. The reversal of 20376841 is 14867302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17816841 + 2560000 = 4221^2 + 1600^2 .

It is a cyclic number.

It is not a de Polignac number, because 20376841 - 29 = 20376329 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20376847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10188420 + 10188421.

It is an arithmetic number, because the mean of its divisors is an integer number (10188421).

Almost surely, 220376841 is an apocalyptic number.

It is an amenable number.

20376841 is a deficient number, since it is larger than the sum of its proper divisors (1).

20376841 is an equidigital number, since it uses as much as digits as its factorization.

20376841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 20376841 is about 4514.0714438298. The cubic root of 20376841 is about 273.1360045452.

The spelling of 20376841 in words is "twenty million, three hundred seventy-six thousand, eight hundred forty-one".