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2225320 = 23555633
BaseRepresentation
bin1000011111010010101000
311012001120021
420133102220
51032202240
6115410224
724625546
oct10372250
94161507
102225320
11128aa09
128b3974
135cbb76
1441cd96
152de54a
hex21f4a8

2225320 has 16 divisors (see below), whose sum is σ = 5007060. Its totient is φ = 890112.

The previous prime is 2225269. The next prime is 2225323. The reversal of 2225320 is 235222.

It can be written as a sum of positive squares in 2 ways, for example, as 2033476 + 191844 = 1426^2 + 438^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2225294 and 2225303.

It is not an unprimeable number, because it can be changed into a prime (2225323) 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, 27777 + ... + 27856.

22225320 is an apocalyptic number.

2225320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2225320 is an abundant number, since it is smaller than the sum of its proper divisors (2781740).

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

2225320 is a wasteful number, since it uses less digits than its factorization.

2225320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55644 (or 55640 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 2225320 is about 1491.7506494049. The cubic root of 2225320 is about 130.5561968347.

It can be divided in two parts, 22 and 25320, that multiplied together give a triangular number (557040 = T1055).

The spelling of 2225320 in words is "two million, two hundred twenty-five thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 55633 111266 222532 278165 445064 556330 1112660 2225320