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7135213 = 61911527
BaseRepresentation
bin11011001101111111101101
3111102111200011
4123031333231
53311311323
6412533221
7114435241
oct33157755
914374604
107135213
114033878
122481211
13162a927
14d3a421
1595e20d
hex6cdfed

7135213 has 4 divisors (see below), whose sum is σ = 7147360. Its totient is φ = 7123068.

The previous prime is 7135207. The next prime is 7135217. The reversal of 7135213 is 3125317.

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.

It is a cyclic number.

It is not a de Polignac number, because 7135213 - 25 = 7135181 is a prime.

It is a super-2 number, since 2×71352132 = 101822529110738, 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 (7135217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5145 + ... + 6382.

It is an arithmetic number, because the mean of its divisors is an integer number (1786840).

Almost surely, 27135213 is an apocalyptic number.

It is an amenable number.

7135213 is a deficient number, since it is larger than the sum of its proper divisors (12147).

7135213 is a wasteful number, since it uses less digits than its factorization.

7135213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12146.

The product of its digits is 630, while the sum is 22.

The square root of 7135213 is about 2671.1819481271. The cubic root of 7135213 is about 192.5169535864.

The spelling of 7135213 in words is "seven million, one hundred thirty-five thousand, two hundred thirteen".

Divisors: 1 619 11527 7135213