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26200420 = 2257118451
BaseRepresentation
bin110001111110…
…0100101100100
31211022010012221
41203330211210
523201403140
62333322124
7435462031
oct143744544
954263187
1026200420
1113875844
128936344
13557470c
1436a0388
15247814a
hex18fc964

26200420 has 24 divisors (see below), whose sum is σ = 55798848. Its totient is φ = 10332000.

The previous prime is 26200399. The next prime is 26200441. The reversal of 26200420 is 2400262.

It is an interprime number because it is at equal distance from previous prime (26200399) and next prime (26200441).

It is a junction number, because it is equal to n+sod(n) for n = 26200394 and 26200403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7806 + ... + 10645.

It is an arithmetic number, because the mean of its divisors is an integer number (2324952).

Almost surely, 226200420 is an apocalyptic number.

26200420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26200420 is an abundant number, since it is smaller than the sum of its proper divisors (29598428).

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

26200420 is a wasteful number, since it uses less digits than its factorization.

26200420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18531 (or 18529 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 26200420 is about 5118.6345835584. The cubic root of 26200420 is about 297.0088688226.

Adding to 26200420 its reverse (2400262), we get a palindrome (28600682).

The spelling of 26200420 in words is "twenty-six million, two hundred thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 71 142 284 355 710 1420 18451 36902 73804 92255 184510 369020 1310021 2620042 5240084 6550105 13100210 26200420