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12715073 = 71816439
BaseRepresentation
bin110000100000…
…010001000001
3212220222210122
4300200101001
511223340243
61132310025
7213035120
oct60402101
925828718
1012715073
1171a5028
124312315
132832617
14198dab7
1511b2668
hexc20441

12715073 has 4 divisors (see below), whose sum is σ = 14531520. Its totient is φ = 10898628.

The previous prime is 12715063. The next prime is 12715081. The reversal of 12715073 is 37051721.

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 12715073 - 28 = 12714817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12715063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 908213 + ... + 908226.

It is an arithmetic number, because the mean of its divisors is an integer number (3632880).

Almost surely, 212715073 is an apocalyptic number.

It is an amenable number.

12715073 is a deficient number, since it is larger than the sum of its proper divisors (1816447).

12715073 is an equidigital number, since it uses as much as digits as its factorization.

12715073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816446.

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 12715073 is about 3565.8201020242. The cubic root of 12715073 is about 233.4029205147.

Adding to 12715073 its reverse (37051721), we get a palindrome (49766794).

The spelling of 12715073 in words is "twelve million, seven hundred fifteen thousand, seventy-three".

Divisors: 1 7 1816439 12715073