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13046971 = 71863853
BaseRepresentation
bin110001110001…
…010010111011
3220112212002011
4301301102323
511320000341
61143350351
7215616550
oct61612273
926485064
1013046971
117401423
1244523b7
13291a702
141a38a27
15122ab81
hexc714bb

13046971 has 4 divisors (see below), whose sum is σ = 14910832. Its totient is φ = 11183112.

The previous prime is 13046963. The next prime is 13046981. The reversal of 13046971 is 17964031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17964031 = 25037177.

It is a cyclic number.

It is not a de Polignac number, because 13046971 - 23 = 13046963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13046941) 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 3 ways as a sum of consecutive naturals, for example, 931920 + ... + 931933.

It is an arithmetic number, because the mean of its divisors is an integer number (3727708).

Almost surely, 213046971 is an apocalyptic number.

13046971 is a deficient number, since it is larger than the sum of its proper divisors (1863861).

13046971 is an equidigital number, since it uses as much as digits as its factorization.

13046971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1863860.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 13046971 is about 3612.0591080435. The cubic root of 13046971 is about 235.4163195164.

The spelling of 13046971 in words is "thirteen million, forty-six thousand, nine hundred seventy-one".

Divisors: 1 7 1863853 13046971