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26380340 = 2257188431
BaseRepresentation
bin110010010100…
…0100000110100
31211122021000122
41210220200310
523223132330
62341231112
7440141420
oct144504064
954567018
1026380340
1113988a38
128a02498
13560858c
143709b80
1524b15e5
hex1928834

26380340 has 24 divisors (see below), whose sum is σ = 63313152. Its totient is φ = 9044640.

The previous prime is 26380339. The next prime is 26380357. The reversal of 26380340 is 4308362.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94076 + ... + 94355.

It is an arithmetic number, because the mean of its divisors is an integer number (2638048).

Almost surely, 226380340 is an apocalyptic number.

26380340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26380340 is an abundant number, since it is smaller than the sum of its proper divisors (36932812).

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

26380340 is a wasteful number, since it uses less digits than its factorization.

26380340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188447 (or 188445 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 26380340 is about 5136.1795139968. The cubic root of 26380340 is about 297.6871783031.

The spelling of 26380340 in words is "twenty-six million, three hundred eighty thousand, three hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 188431 376862 753724 942155 1319017 1884310 2638034 3768620 5276068 6595085 13190170 26380340