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26828243 = 132158747
BaseRepresentation
bin110011001010…
…1110111010011
31212111000102122
41212111313103
523332000433
62355004455
7444015311
oct146256723
955430378
1026828243
1114164502
128b9972b
135734400
1437c50b1
15254e198
hex1995dd3

26828243 has 6 divisors (see below), whose sum is σ = 29050884. Its totient is φ = 24764376.

The previous prime is 26828239. The next prime is 26828257. The reversal of 26828243 is 34282862.

It is not a de Polignac number, because 26828243 - 22 = 26828239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26828203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 79205 + ... + 79542.

It is an arithmetic number, because the mean of its divisors is an integer number (4841814).

Almost surely, 226828243 is an apocalyptic number.

26828243 is a deficient number, since it is larger than the sum of its proper divisors (2222641).

26828243 is a wasteful number, since it uses less digits than its factorization.

26828243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158773 (or 158760 counting only the distinct ones).

The product of its digits is 36864, while the sum is 35.

The square root of 26828243 is about 5179.5987296315. The cubic root of 26828243 is about 299.3625092744.

The spelling of 26828243 in words is "twenty-six million, eight hundred twenty-eight thousand, two hundred forty-three".

Divisors: 1 13 169 158747 2063711 26828243