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26997340 = 2251349867
BaseRepresentation
bin110011011111…
…1001001011100
31212210121101111
41212333021130
523402403330
62402351404
7445321306
oct146771134
955717344
1026997340
111426a557
12905b564
135793376
14382a976
15258432a
hex19bf25c

26997340 has 12 divisors (see below), whose sum is σ = 56694456. Its totient is φ = 10798928.

The previous prime is 26997329. The next prime is 26997359. The reversal of 26997340 is 4379962.

It is a junction number, because it is equal to n+sod(n) for n = 26997293 and 26997302.

It is a congruent number.

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, 674914 + ... + 674953.

It is an arithmetic number, because the mean of its divisors is an integer number (4724538).

Almost surely, 226997340 is an apocalyptic number.

26997340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26997340 is an abundant number, since it is smaller than the sum of its proper divisors (29697116).

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

26997340 is a wasteful number, since it uses less digits than its factorization.

26997340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349876 (or 1349874 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 26997340 is about 5195.8964577828. The cubic root of 26997340 is about 299.9901478246.

The spelling of 26997340 in words is "twenty-six million, nine hundred ninety-seven thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 1349867 2699734 5399468 6749335 13498670 26997340