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2626220 = 225131311
BaseRepresentation
bin1010000001001010101100
311221102111102
422001022230
51133014340
6132142232
731215422
oct12011254
94842442
102626220
111534133
12a67978
1370c49c
144c5112
1536d215
hex2812ac

2626220 has 12 divisors (see below), whose sum is σ = 5515104. Its totient is φ = 1050480.

The previous prime is 2626181. The next prime is 2626229. The reversal of 2626220 is 226262.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 131311 = 2626220 / (2 + 6 + 2 + 6 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 2626192 and 2626201.

It is not an unprimeable number, because it can be changed into a prime (2626229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65636 + ... + 65675.

It is an arithmetic number, because the mean of its divisors is an integer number (459592).

22626220 is an apocalyptic number.

2626220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2626220 is an abundant number, since it is smaller than the sum of its proper divisors (2888884).

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

2626220 is a wasteful number, since it uses less digits than its factorization.

2626220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131320 (or 131318 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2626220 is about 1620.5616310403. The cubic root of 2626220 is about 137.9675762234.

The spelling of 2626220 in words is "two million, six hundred twenty-six thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 131311 262622 525244 656555 1313110 2626220