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26768380 = 2254728477
BaseRepresentation
bin110011000011…
…1001111111100
31212100222022111
41212013033330
523323042010
62353423404
7443345632
oct146071774
955328274
1026768380
1114123531
128b6ab64
1357130a2
1437ab352
15253b58a
hex19873fc

26768380 has 24 divisors (see below), whose sum is σ = 57411648. Its totient is φ = 10479168.

The previous prime is 26768377. The next prime is 26768381. The reversal of 26768380 is 8386762.

It is a happy number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26768381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13299 + ... + 15178.

It is an arithmetic number, because the mean of its divisors is an integer number (2392152).

Almost surely, 226768380 is an apocalyptic number.

26768380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26768380 is an abundant number, since it is smaller than the sum of its proper divisors (30643268).

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

26768380 is a wasteful number, since it uses less digits than its factorization.

26768380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28533 (or 28531 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 26768380 is about 5173.8167729443. The cubic root of 26768380 is about 299.1396833574.

The spelling of 26768380 in words is "twenty-six million, seven hundred sixty-eight thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 47 94 188 235 470 940 28477 56954 113908 142385 284770 569540 1338419 2676838 5353676 6692095 13384190 26768380