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26389000 = 2353112399
BaseRepresentation
bin110010010101…
…0101000001000
31211122200220101
41210222220020
523223422000
62341335144
7440205601
oct144525010
954580811
1026389000
11139944a0
128a074b4
13560c4c1
14370cda8
1524b3e6a
hex192aa08

26389000 has 64 divisors (see below), whose sum is σ = 67392000. Its totient is φ = 9592000.

The previous prime is 26388997. The next prime is 26389001. The reversal of 26389000 is 98362.

It is a self number, because there is not a number n which added to its sum of digits gives 26389000.

It is not an unprimeable number, because it can be changed into a prime (26389001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9801 + ... + 12199.

It is an arithmetic number, because the mean of its divisors is an integer number (1053000).

Almost surely, 226389000 is an apocalyptic number.

26389000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26389000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33696000).

26389000 is an abundant number, since it is smaller than the sum of its proper divisors (41003000).

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

26389000 is a wasteful number, since it uses less digits than its factorization.

26389000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2431 (or 2417 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 26389000 is about 5137.0224838908. The cubic root of 26389000 is about 297.7197491358.

The spelling of 26389000 in words is "twenty-six million, three hundred eighty-nine thousand".

Divisors: 1 2 4 5 8 10 11 20 22 25 40 44 50 55 88 100 110 125 200 220 250 275 440 500 550 1000 1100 1375 2200 2399 2750 4798 5500 9596 11000 11995 19192 23990 26389 47980 52778 59975 95960 105556 119950 131945 211112 239900 263890 299875 479800 527780 599750 659725 1055560 1199500 1319450 2399000 2638900 3298625 5277800 6597250 13194500 26389000