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26915069 is a prime number
BaseRepresentation
bin110011010101…
…1000011111101
31212122102112102
41212223003331
523342240234
62400514445
7444526406
oct146530375
955572472
1026915069
1114213765
12901ba25
135764a9c
1438089ad
152569c7e
hex19ab0fd

26915069 has 2 divisors, whose sum is σ = 26915070. Its totient is φ = 26915068.

The previous prime is 26915017. The next prime is 26915071. The reversal of 26915069 is 96051962.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24870169 + 2044900 = 4987^2 + 1430^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-26915069 is a prime.

It is a super-2 number, since 2×269150692 = 1448841878549522, which contains 22 as substring.

Together with 26915071, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26915569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13457534 + 13457535.

It is an arithmetic number, because the mean of its divisors is an integer number (13457535).

Almost surely, 226915069 is an apocalyptic number.

It is an amenable number.

26915069 is a deficient number, since it is larger than the sum of its proper divisors (1).

26915069 is an equidigital number, since it uses as much as digits as its factorization.

26915069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 26915069 is about 5187.9734964628. The cubic root of 26915069 is about 299.6851103381.

The spelling of 26915069 in words is "twenty-six million, nine hundred fifteen thousand, sixty-nine".