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26368938 = 23217237137
BaseRepresentation
bin110010010010…
…1101110101010
31211121200101100
41210211232222
523222301223
62341102230
7440063241
oct144455652
954550340
1026368938
1113980412
1289b7976
13560332b
143705958
1524ad043
hex1925baa

26368938 has 72 divisors (see below), whose sum is σ = 62786412. Its totient is φ = 7990272.

The previous prime is 26368919. The next prime is 26368939. The reversal of 26368938 is 83986362.

26368938 is a `hidden beast` number, since 2 + 636 + 8 + 9 + 3 + 8 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 25130169 + 1238769 = 5013^2 + 1113^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

Its product of digits (373248) is a multiple of the sum of its prime factors (216).

It is a junction number, because it is equal to n+sod(n) for n = 26368893 and 26368902.

It is not an unprimeable number, because it can be changed into a prime (26368939) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 192406 + ... + 192542.

Almost surely, 226368938 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26368938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31393206).

26368938 is an abundant number, since it is smaller than the sum of its proper divisors (36417474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26368938 is a wasteful number, since it uses less digits than its factorization.

26368938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 196 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 26368938 is about 5135.0694250419. The cubic root of 26368938 is about 297.6442837544.

The spelling of 26368938 in words is "twenty-six million, three hundred sixty-eight thousand, nine hundred thirty-eight".

Divisors: 1 2 3 6 9 17 18 34 37 51 74 102 111 137 153 222 274 289 306 333 411 578 629 666 822 867 1233 1258 1734 1887 2329 2466 2601 3774 4658 5069 5202 5661 6987 10138 10693 11322 13974 15207 20961 21386 30414 32079 39593 41922 45621 64158 79186 86173 91242 96237 118779 172346 192474 237558 258519 356337 517038 712674 775557 1464941 1551114 2929882 4394823 8789646 13184469 26368938