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26842445 = 5723312
BaseRepresentation
bin110011001100…
…1010101001101
31212111201220122
41212121111031
523332424240
62355154325
7444104600
oct146312515
955451818
1026842445
1114174143
128ba59a5
13573aa06
1437ca337
1525534b5
hex199954d

26842445 has 18 divisors (see below), whose sum is σ = 37583406. Its totient is φ = 18350640.

The previous prime is 26842423. The next prime is 26842457. The reversal of 26842445 is 54424862.

It can be written as a sum of positive squares in only one way, i.e., 21473956 + 5368489 = 4634^2 + 2317^2 .

It is not a de Polignac number, because 26842445 - 26 = 26842381 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 80930 + ... + 81260.

It is an arithmetic number, because the mean of its divisors is an integer number (2087967).

Almost surely, 226842445 is an apocalyptic number.

It is an amenable number.

26842445 is a deficient number, since it is larger than the sum of its proper divisors (10740961).

26842445 is an frugal number, since it uses more digits than its factorization.

26842445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681 (or 343 counting only the distinct ones).

The product of its digits is 61440, while the sum is 35.

The square root of 26842445 is about 5180.9695038670. The cubic root of 26842445 is about 299.4153242173.

The spelling of 26842445 in words is "twenty-six million, eight hundred forty-two thousand, four hundred forty-five".

Divisors: 1 5 7 35 49 245 331 1655 2317 11585 16219 81095 109561 547805 766927 3834635 5368489 26842445