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26742081 = 38914027
BaseRepresentation
bin110011000000…
…0110101000001
31212022122020110
41212000311001
523321221311
62353101533
7443206152
oct146006501
955278213
1026742081
11141057a3
128b578a9
135704122
1437a1929
1525338a6
hex1980d41

26742081 has 4 divisors (see below), whose sum is σ = 35656112. Its totient is φ = 17828052.

The previous prime is 26742061. The next prime is 26742113. The reversal of 26742081 is 18024762.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 26742081 - 25 = 26742049 is a prime.

It is a super-2 number, since 2×267420812 = 1430277792421122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26742061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4457011 + ... + 4457016.

It is an arithmetic number, because the mean of its divisors is an integer number (8914028).

Almost surely, 226742081 is an apocalyptic number.

It is an amenable number.

26742081 is a deficient number, since it is larger than the sum of its proper divisors (8914031).

26742081 is an equidigital number, since it uses as much as digits as its factorization.

26742081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8914030.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 26742081 is about 5171.2746011017. The cubic root of 26742081 is about 299.0416864880.

The spelling of 26742081 in words is "twenty-six million, seven hundred forty-two thousand, eighty-one".

Divisors: 1 3 8914027 26742081