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3213307 = 23139709
BaseRepresentation
bin1100010000011111111011
320001020211101
430100133323
51310311212
6152512231
736212146
oct14203773
96036741
103213307
1118a5229
1210ab677
13886786
145d905d
15437157
hex3107fb

3213307 has 4 divisors (see below), whose sum is σ = 3353040. Its totient is φ = 3073576.

The previous prime is 3213283. The next prime is 3213349. The reversal of 3213307 is 7033123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7033123 = 43163561.

It is a cyclic number.

It is not a de Polignac number, because 3213307 - 219 = 2689019 is a prime.

It is a Duffinian number.

3213307 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3213377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69832 + ... + 69877.

It is an arithmetic number, because the mean of its divisors is an integer number (838260).

Almost surely, 23213307 is an apocalyptic number.

3213307 is a deficient number, since it is larger than the sum of its proper divisors (139733).

3213307 is a wasteful number, since it uses less digits than its factorization.

3213307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139732.

The product of its (nonzero) digits is 378, while the sum is 19.

The square root of 3213307 is about 1792.5699428474. The cubic root of 3213307 is about 147.5652416544.

The spelling of 3213307 in words is "three million, two hundred thirteen thousand, three hundred seven".

Divisors: 1 23 139709 3213307