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26825980 = 2254331193
BaseRepresentation
bin110011001010…
…1010011111100
31212110220022211
41212111103330
523331412410
62354550204
7444005566
oct146252374
955426284
1026825980
1114162835
128b98364
13573337c
1437c4336
15254d68a
hex19954fc

26825980 has 24 divisors (see below), whose sum is σ = 57646512. Its totient is φ = 10480512.

The previous prime is 26825971. The next prime is 26825993. The reversal of 26825980 is 8952862.

It is a zygodrome in base 7.

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, 14737 + ... + 16456.

It is an arithmetic number, because the mean of its divisors is an integer number (2401938).

Almost surely, 226825980 is an apocalyptic number.

26825980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26825980 is an abundant number, since it is smaller than the sum of its proper divisors (30820532).

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

26825980 is a wasteful number, since it uses less digits than its factorization.

26825980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31245 (or 31243 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 26825980 is about 5179.3802718086. The cubic root of 26825980 is about 299.3540918216.

The spelling of 26825980 in words is "twenty-six million, eight hundred twenty-five thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 43 86 172 215 430 860 31193 62386 124772 155965 311930 623860 1341299 2682598 5365196 6706495 13412990 26825980