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3213305 = 53120731
BaseRepresentation
bin1100010000011111111001
320001020211022
430100133321
51310311210
6152512225
736212144
oct14203771
96036738
103213305
1118a5227
1210ab675
13886784
145d905b
15437155
hex3107f9

3213305 has 8 divisors (see below), whose sum is σ = 3980544. Its totient is φ = 2487600.

The previous prime is 3213283. The next prime is 3213349. The reversal of 3213305 is 5033123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3213305 - 218 = 2951161 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10211 + ... + 10520.

It is an arithmetic number, because the mean of its divisors is an integer number (497568).

Almost surely, 23213305 is an apocalyptic number.

It is an amenable number.

3213305 is a deficient number, since it is larger than the sum of its proper divisors (767239).

3213305 is a wasteful number, since it uses less digits than its factorization.

3213305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20767.

The product of its (nonzero) digits is 270, while the sum is 17.

The square root of 3213305 is about 1792.5693849890. The cubic root of 3213305 is about 147.5652110390.

Adding to 3213305 its reverse (5033123), we get a palindrome (8246428).

The spelling of 3213305 in words is "three million, two hundred thirteen thousand, three hundred five".

Divisors: 1 5 31 155 20731 103655 642661 3213305