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2125207 = 7192292
BaseRepresentation
bin1000000110110110010111
310222222020101
420012312113
51021001312
6113314531
724030640
oct10066627
93888211
102125207
111221777
12865a47
13595426
143d46c7
152bea57
hex206d97

2125207 has 18 divisors (see below), whose sum is σ = 2654808. Its totient is φ = 1666224.

The previous prime is 2125181. The next prime is 2125219. The reversal of 2125207 is 7025212.

2125207 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2125207 - 215 = 2092439 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a d-powerful number, because it can be written as 213 + 1 + 215 + 59 + 217 + 0 + 72 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 73269 + ... + 73297.

22125207 is an apocalyptic number.

2125207 is a deficient number, since it is larger than the sum of its proper divisors (529601).

2125207 is an equidigital number, since it uses as much as digits as its factorization.

2125207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103 (or 55 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 2125207 is about 1457.8089723966. The cubic root of 2125207 is about 128.5682539487.

It can be divided in two parts, 2125 and 207, that added together give a palindrome (2332).

The spelling of 2125207 in words is "two million, one hundred twenty-five thousand, two hundred seven".

Divisors: 1 7 19 29 133 203 361 551 841 2527 3857 5887 10469 15979 73283 111853 303601 2125207