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13019927 = 294353197
BaseRepresentation
bin110001101010…
…101100010111
3220111110222112
4301222230113
511313114202
61143021235
7215444654
oct61525427
926443875
1013019927
117393078
12443a81b
13290b2cb
141a2cc2b
151222b52
hexc6ab17

13019927 has 16 divisors (see below), whose sum is σ = 14113440. Its totient is φ = 11985792.

The previous prime is 13019917. The next prime is 13019933. The reversal of 13019927 is 72991031.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13019927 - 212 = 13015831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13019893 and 13019902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13019917) 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 15 ways as a sum of consecutive naturals, for example, 65993 + ... + 66189.

It is an arithmetic number, because the mean of its divisors is an integer number (882090).

Almost surely, 213019927 is an apocalyptic number.

13019927 is a deficient number, since it is larger than the sum of its proper divisors (1093513).

13019927 is a wasteful number, since it uses less digits than its factorization.

13019927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 13019927 is about 3608.3135950191. The cubic root of 13019927 is about 235.2535485827.

The spelling of 13019927 in words is "thirteen million, nineteen thousand, nine hundred twenty-seven".

Divisors: 1 29 43 53 197 1247 1537 2279 5713 8471 10441 66091 245659 302789 448963 13019927