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26485223149 = 711343963937
BaseRepresentation
bin11000101010101001…
…000110111011101101
32112100210121201221201
4120222221012323231
5413220204120044
620100034125501
71625220453010
oct305251067355
975323551851
1026485223149
1110261244180
125171a20891
132661153898
1413d3721377
15a5029d7d4
hex62aa46eed

26485223149 has 8 divisors (see below), whose sum is σ = 33020538048. Its totient is φ = 20637836160.

The previous prime is 26485223119. The next prime is 26485223159. The reversal of 26485223149 is 94132258462.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-26485223149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26485223099 and 26485223108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26485223119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171981892 + ... + 171982045.

It is an arithmetic number, because the mean of its divisors is an integer number (4127567256).

Almost surely, 226485223149 is an apocalyptic number.

It is an amenable number.

26485223149 is a deficient number, since it is larger than the sum of its proper divisors (6535314899).

26485223149 is a wasteful number, since it uses less digits than its factorization.

26485223149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343963955.

The product of its digits is 829440, while the sum is 46.

The spelling of 26485223149 in words is "twenty-six billion, four hundred eighty-five million, two hundred twenty-three thousand, one hundred forty-nine".

Divisors: 1 7 11 77 343963937 2407747559 3783603307 26485223149