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26071940 = 2251303597
BaseRepresentation
bin110001101110…
…1001110000100
31211001120222102
41203131032010
523133300230
62330451232
7434415326
oct143351604
954046872
1026071940
1113798264
128893b18
13552b0ab
143669616
152450045
hex18dd384

26071940 has 12 divisors (see below), whose sum is σ = 54751116. Its totient is φ = 10428768.

The previous prime is 26071937. The next prime is 26071963. The reversal of 26071940 is 4917062.

It can be written as a sum of positive squares in 2 ways, for example, as 17023876 + 9048064 = 4126^2 + 3008^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 651779 + ... + 651818.

It is an arithmetic number, because the mean of its divisors is an integer number (4562593).

Almost surely, 226071940 is an apocalyptic number.

26071940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26071940 is an abundant number, since it is smaller than the sum of its proper divisors (28679176).

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

26071940 is a wasteful number, since it uses less digits than its factorization.

26071940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303606 (or 1303604 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 26071940 is about 5106.0689380383. The cubic root of 26071940 is about 296.5225885135.

The spelling of 26071940 in words is "twenty-six million, seventy-one thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 1303597 2607194 5214388 6517985 13035970 26071940