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2250020 = 225112501
BaseRepresentation
bin1000100101010100100100
311020022110002
420211110210
51034000040
6120120432
725060553
oct10452444
94208402
102250020
1112a7523
12906118
1360a196
14427d9a
152e6a15
hex225524

2250020 has 12 divisors (see below), whose sum is σ = 4725084. Its totient is φ = 900000.

The previous prime is 2250013. The next prime is 2250029. The reversal of 2250020 is 200522.

It can be written as a sum of positive squares in 2 ways, for example, as 465124 + 1784896 = 682^2 + 1336^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2249983 and 2250010.

It is not an unprimeable number, because it can be changed into a prime (2250029) 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, 56231 + ... + 56270.

It is an arithmetic number, because the mean of its divisors is an integer number (393757).

22250020 is an apocalyptic number.

2250020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2250020 is an abundant number, since it is smaller than the sum of its proper divisors (2475064).

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

2250020 is a wasteful number, since it uses less digits than its factorization.

2250020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112510 (or 112508 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 11.

The square root of 2250020 is about 1500.0066666519. The cubic root of 2250020 is about 131.0374579673.

Adding to 2250020 its reverse (200522), we get a palindrome (2450542).

The spelling of 2250020 in words is "two million, two hundred fifty thousand, twenty".

Divisors: 1 2 4 5 10 20 112501 225002 450004 562505 1125010 2250020