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26901197 is a prime number
BaseRepresentation
bin110011010011…
…1101011001101
31212121201111122
41212213223031
523341314242
62400330325
7444441101
oct146475315
955551448
1026901197
11142042a4
1290139a5
13575b68b
143803901
152565ad2
hex19a7acd

26901197 has 2 divisors, whose sum is σ = 26901198. Its totient is φ = 26901196.

The previous prime is 26901179. The next prime is 26901221. The reversal of 26901197 is 79110962.

Together with previous prime (26901179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13498276 + 13402921 = 3674^2 + 3661^2 .

It is a cyclic number.

It is not a de Polignac number, because 26901197 - 210 = 26900173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26901137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13450598 + 13450599.

It is an arithmetic number, because the mean of its divisors is an integer number (13450599).

Almost surely, 226901197 is an apocalyptic number.

It is an amenable number.

26901197 is a deficient number, since it is larger than the sum of its proper divisors (1).

26901197 is an equidigital number, since it uses as much as digits as its factorization.

26901197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 26901197 is about 5186.6363859442. The cubic root of 26901197 is about 299.6336156869.

The spelling of 26901197 in words is "twenty-six million, nine hundred one thousand, one hundred ninety-seven".