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16750225 = 526131093
BaseRepresentation
bin111111111001…
…011010010001
31011111222222201
4333321122101
513242001400
61355003201
7262242322
oct77713221
934458881
1016750225
119500768
125739501
13361619b
142320449
15170d06a
hexff9691

16750225 has 12 divisors (see below), whose sum is σ = 20823196. Its totient is φ = 13366080.

The previous prime is 16750213. The next prime is 16750231. The reversal of 16750225 is 52205761.

It can be written as a sum of positive squares in 6 ways, for example, as 501264 + 16248961 = 708^2 + 4031^2 .

It is not a de Polignac number, because 16750225 - 215 = 16717457 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16750193 and 16750202.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14779 + ... + 15871.

Almost surely, 216750225 is an apocalyptic number.

It is an amenable number.

16750225 is a deficient number, since it is larger than the sum of its proper divisors (4072971).

16750225 is a wasteful number, since it uses less digits than its factorization.

16750225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716 (or 1711 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 16750225 is about 4092.7038739689. The cubic root of 16750225 is about 255.8626429890.

Adding to 16750225 its reverse (52205761), we get a palindrome (68955986).

The spelling of 16750225 in words is "sixteen million, seven hundred fifty thousand, two hundred twenty-five".

Divisors: 1 5 25 613 1093 3065 5465 15325 27325 670009 3350045 16750225