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2252420 = 225112621
BaseRepresentation
bin1000100101111010000100
311020102201222
420211322010
51034034140
6120135512
725100552
oct10457204
94212658
102252420
1112a9305
12907598
1360b2c1
14428bd2
152e75b5
hex225e84

2252420 has 12 divisors (see below), whose sum is σ = 4730124. Its totient is φ = 900960.

The previous prime is 2252407. The next prime is 2252441. The reversal of 2252420 is 242522.

It can be written as a sum of positive squares in 2 ways, for example, as 1435204 + 817216 = 1198^2 + 904^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56291 + ... + 56330.

It is an arithmetic number, because the mean of its divisors is an integer number (394177).

22252420 is an apocalyptic number.

2252420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2252420 is an abundant number, since it is smaller than the sum of its proper divisors (2477704).

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

2252420 is a wasteful number, since it uses less digits than its factorization.

2252420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112630 (or 112628 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 2252420 is about 1500.8064498795. The cubic root of 2252420 is about 131.0840320937.

Adding to 2252420 its reverse (242522), we get a palindrome (2494942).

The spelling of 2252420 in words is "two million, two hundred fifty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 112621 225242 450484 563105 1126210 2252420