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3225217 = 13923203
BaseRepresentation
bin1100010011011010000001
320001212011111
430103122001
51311201332
6153043321
736261652
oct14233201
96055144
103225217
111903176
1210b6541
1388c018
145dd529
1543a947
hex313681

3225217 has 4 divisors (see below), whose sum is σ = 3248560. Its totient is φ = 3201876.

The previous prime is 3225203. The next prime is 3225227. The reversal of 3225217 is 7125223.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7125223 = 71017889.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3225217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3225227) 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, 11463 + ... + 11740.

It is an arithmetic number, because the mean of its divisors is an integer number (812140).

Almost surely, 23225217 is an apocalyptic number.

It is an amenable number.

3225217 is a deficient number, since it is larger than the sum of its proper divisors (23343).

3225217 is a wasteful number, since it uses less digits than its factorization.

3225217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23342.

The product of its digits is 840, while the sum is 22.

The square root of 3225217 is about 1795.8889163865. Note that the first 3 decimals coincide. The cubic root of 3225217 is about 147.7473318517.

The spelling of 3225217 in words is "three million, two hundred twenty-five thousand, two hundred seventeen".

Divisors: 1 139 23203 3225217