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2140225 = 52591451
BaseRepresentation
bin1000001010100001000001
311000201211121
420022201001
51021441400
6113512241
724122503
oct10124101
94021747
102140225
111231a8a
12872681
1359c209
143d9d73
152c421a
hex20a841

2140225 has 12 divisors (see below), whose sum is σ = 2700720. Its totient is φ = 1682000.

The previous prime is 2140223. The next prime is 2140231. The reversal of 2140225 is 5220412.

It is not a de Polignac number, because 2140225 - 21 = 2140223 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2140199 and 2140208.

It is not an unprimeable number, because it can be changed into a prime (2140223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 750 + ... + 2200.

It is an arithmetic number, because the mean of its divisors is an integer number (225060).

22140225 is an apocalyptic number.

2140225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2140225 is a deficient number, since it is larger than the sum of its proper divisors (560495).

2140225 is a wasteful number, since it uses less digits than its factorization.

2140225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520 (or 1515 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 2140225 is about 1462.9507852283. The cubic root of 2140225 is about 128.8703904233.

Adding to 2140225 its reverse (5220412), we get a palindrome (7360637).

The spelling of 2140225 in words is "two million, one hundred forty thousand, two hundred twenty-five".

Divisors: 1 5 25 59 295 1451 1475 7255 36275 85609 428045 2140225