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26049000881 = 31840290351
BaseRepresentation
bin11000010000101001…
…000011010110110001
32111020101210100111102
4120100221003112301
5411322021012011
615544452254145
71611342565661
oct302051032661
974211710442
1026049000881
1110057a88a02
12506b911355
1325c196c0b7
14139180c1a1
15a26d3273b
hex610a435b1

26049000881 has 4 divisors (see below), whose sum is σ = 26889291264. Its totient is φ = 25208710500.

The previous prime is 26049000853. The next prime is 26049000889. The reversal of 26049000881 is 18800094062.

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 a cyclic number.

It is not a de Polignac number, because 26049000881 - 210 = 26048999857 is a prime.

It is a super-2 number, since 2×260490008812 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26049000889) 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, 420145145 + ... + 420145206.

It is an arithmetic number, because the mean of its divisors is an integer number (6722322816).

Almost surely, 226049000881 is an apocalyptic number.

It is an amenable number.

26049000881 is a deficient number, since it is larger than the sum of its proper divisors (840290383).

26049000881 is an equidigital number, since it uses as much as digits as its factorization.

26049000881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840290382.

The product of its (nonzero) digits is 27648, while the sum is 38.

The spelling of 26049000881 in words is "twenty-six billion, forty-nine million, eight hundred eighty-one", and thus it is an aban number.

Divisors: 1 31 840290351 26049000881