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26748005 = 52926361
BaseRepresentation
bin110011000001…
…0010001100101
31212022221100212
41212002101211
523321414010
62353145205
7443232344
oct146022145
955287325
1026748005
111410a199
128b5b205
135706a2b
1437a3b5b
152535505
hex1982465

26748005 has 12 divisors (see below), whose sum is σ = 33247812. Its totient is φ = 20657280.

The previous prime is 26747993. The next prime is 26748023. The reversal of 26748005 is 50084762.

26748005 is nontrivially palindromic in base 7.

It can be written as a sum of positive squares in 6 ways, for example, as 850084 + 25897921 = 922^2 + 5089^2 .

It is not a de Polignac number, because 26748005 - 212 = 26743909 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1025 + ... + 7385.

It is an arithmetic number, because the mean of its divisors is an integer number (2770651).

Almost surely, 226748005 is an apocalyptic number.

It is an amenable number.

26748005 is a deficient number, since it is larger than the sum of its proper divisors (6499807).

26748005 is an equidigital number, since it uses as much as digits as its factorization.

26748005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6424 (or 6395 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 26748005 is about 5171.8473488687. The cubic root of 26748005 is about 299.0637664470.

The spelling of 26748005 in words is "twenty-six million, seven hundred forty-eight thousand, five".

Divisors: 1 5 29 145 841 4205 6361 31805 184469 922345 5349601 26748005