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26669105 = 513738933
BaseRepresentation
bin110010110111…
…1000000110001
31212011221010122
41211233000301
523311402410
62351340025
7442453331
oct145570061
955157118
1026669105
1114065991
128b21615
1356a9b48
1437830c1
15251be55
hex196f031

26669105 has 8 divisors (see below), whose sum is σ = 32237352. Its totient is φ = 21179008.

The previous prime is 26669099. The next prime is 26669113. The reversal of 26669105 is 50196662.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2209 + 26666896 = 47^2 + 5164^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26669105 - 24 = 26669089 is a prime.

It is a super-2 number, since 2×266691052 = 1422482323002050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18782 + ... + 20151.

It is an arithmetic number, because the mean of its divisors is an integer number (4029669).

Almost surely, 226669105 is an apocalyptic number.

It is an amenable number.

26669105 is a deficient number, since it is larger than the sum of its proper divisors (5568247).

26669105 is a wasteful number, since it uses less digits than its factorization.

26669105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39075.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 26669105 is about 5164.2138801564. The cubic root of 26669105 is about 298.7694221251.

The spelling of 26669105 in words is "twenty-six million, six hundred sixty-nine thousand, one hundred five".

Divisors: 1 5 137 685 38933 194665 5333821 26669105