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213306007 = 9712011831
BaseRepresentation
bin11001011011011…
…00101010010111
3112212101001211111
430231230222113
5414101243012
633055515451
75200033255
oct1455545227
9485331744
10213306007
11aa450a62
125b528b87
1335265895
14204875d5
1513ad6ba7
hexcb6ca97

213306007 has 8 divisors (see below), whose sum is σ = 215802272. Its totient is φ = 210816000.

The previous prime is 213306001. The next prime is 213306013. The reversal of 213306007 is 700603312.

It is an interprime number because it is at equal distance from previous prime (213306001) and next prime (213306013).

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

It is a cyclic number.

It is not a de Polignac number, because 213306007 - 27 = 213305879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213306001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115582 + ... + 117412.

It is an arithmetic number, because the mean of its divisors is an integer number (26975284).

Almost surely, 2213306007 is an apocalyptic number.

213306007 is a deficient number, since it is larger than the sum of its proper divisors (2496265).

213306007 is a wasteful number, since it uses less digits than its factorization.

213306007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3129.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 213306007 is about 14604.9993837727. Note that the first 3 decimals coincide. The cubic root of 213306007 is about 597.4951192099.

Adding to 213306007 its reverse (700603312), we get a palindrome (913909319).

The spelling of 213306007 in words is "two hundred thirteen million, three hundred six thousand, seven".

Divisors: 1 97 1201 1831 116497 177607 2199031 213306007