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12707213 = 1031071153
BaseRepresentation
bin110000011110…
…010110001101
3212220121000112
4300132112031
511223112323
61132205405
7213003161
oct60362615
925817015
1012707213
11719a132
124309865
13282bb7c
14198aca1
1511b0178
hexc1e58d

12707213 has 8 divisors (see below), whose sum is σ = 12961728. Its totient is φ = 12455424.

The previous prime is 12707147. The next prime is 12707237. The reversal of 12707213 is 31270721.

12707213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12707213 - 28 = 12706957 is a prime.

It is a super-2 number, since 2×127072132 = 322946524454738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12707273) 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, 10445 + ... + 11597.

It is an arithmetic number, because the mean of its divisors is an integer number (1620216).

Almost surely, 212707213 is an apocalyptic number.

It is an amenable number.

12707213 is a deficient number, since it is larger than the sum of its proper divisors (254515).

12707213 is a wasteful number, since it uses less digits than its factorization.

12707213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 12707213 is about 3564.7178008925. The cubic root of 12707213 is about 233.3548168428.

Adding to 12707213 its reverse (31270721), we get a palindrome (43977934).

The spelling of 12707213 in words is "twelve million, seven hundred seven thousand, two hundred thirteen".

Divisors: 1 103 107 1153 11021 118759 123371 12707213