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26720485 = 511485827
BaseRepresentation
bin110010111101…
…1100011100101
31212021112121121
41211323203211
523320023420
62352413541
7443056201
oct145734345
955245547
1026720485
11140a0550
128b472b1
1356c734c
143797b01
15252c2aa
hex197b8e5

26720485 has 8 divisors (see below), whose sum is σ = 34979616. Its totient is φ = 19433040.

The previous prime is 26720483. The next prime is 26720521. The reversal of 26720485 is 58402762.

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

It is not a de Polignac number, because 26720485 - 21 = 26720483 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26720485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26720483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242859 + ... + 242968.

It is an arithmetic number, because the mean of its divisors is an integer number (4372452).

Almost surely, 226720485 is an apocalyptic number.

It is an amenable number.

26720485 is a deficient number, since it is larger than the sum of its proper divisors (8259131).

26720485 is a wasteful number, since it uses less digits than its factorization.

26720485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485843.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 26720485 is about 5169.1861061486. The cubic root of 26720485 is about 298.9611661589.

It can be divided in two parts, 267204 and 85, that added together give a square (267289 = 5172).

The spelling of 26720485 in words is "twenty-six million, seven hundred twenty thousand, four hundred eighty-five".

Divisors: 1 5 11 55 485827 2429135 5344097 26720485