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13070223 = 321452247
BaseRepresentation
bin110001110110…
…111110001111
3220121000222100
4301312332033
511321221343
61144050143
7216044415
oct61667617
926530870
1013070223
117417941
124463953
13292817a
141a432b5
1512329d3
hexc76f8f

13070223 has 6 divisors (see below), whose sum is σ = 18879224. Its totient is φ = 8713476.

The previous prime is 13070221. The next prime is 13070231. The reversal of 13070223 is 32207031.

It is not a de Polignac number, because 13070223 - 21 = 13070221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13070196 and 13070205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13070221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 726115 + ... + 726132.

Almost surely, 213070223 is an apocalyptic number.

13070223 is a deficient number, since it is larger than the sum of its proper divisors (5809001).

13070223 is a wasteful number, since it uses less digits than its factorization.

13070223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1452253 (or 1452250 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 13070223 is about 3615.2763379858. The cubic root of 13070223 is about 235.5560876321.

Adding to 13070223 its reverse (32207031), we get a palindrome (45277254).

The spelling of 13070223 in words is "thirteen million, seventy thousand, two hundred twenty-three".

Divisors: 1 3 9 1452247 4356741 13070223