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26820228 = 2235094391
BaseRepresentation
bin110011001001…
…1111010000100
31212110121102210
41212103322010
523331221403
62354503420
7443653041
oct146237204
955417383
1026820228
1114159486
128b94b70
135730876
1437c21c8
15254bb03
hex1993e84

26820228 has 24 divisors (see below), whose sum is σ = 62717760. Its totient is φ = 8920480.

The previous prime is 26820217. The next prime is 26820253. The reversal of 26820228 is 82202862.

It is a junction number, because it is equal to n+sod(n) for n = 26820195 and 26820204.

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, 3913 + ... + 8303.

It is an arithmetic number, because the mean of its divisors is an integer number (2613240).

Almost surely, 226820228 is an apocalyptic number.

It is an amenable number.

26820228 is an abundant number, since it is smaller than the sum of its proper divisors (35897532).

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

26820228 is a wasteful number, since it uses less digits than its factorization.

26820228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4907 (or 4905 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 26820228 is about 5178.8249632518. The cubic root of 26820228 is about 299.3326945565.

The spelling of 26820228 in words is "twenty-six million, eight hundred twenty thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 12 509 1018 1527 2036 3054 4391 6108 8782 13173 17564 26346 52692 2235019 4470038 6705057 8940076 13410114 26820228