Search a number
-
+
12570113 = 90713859
BaseRepresentation
bin101111111100…
…111000000001
3212122121221202
4233330320001
511204220423
61125230545
7211562363
oct57747001
925577852
1012570113
117106126
124262455
1327b164a
141952d33
151184728
hexbfce01

12570113 has 4 divisors (see below), whose sum is σ = 12584880. Its totient is φ = 12555348.

The previous prime is 12570073. The next prime is 12570119. The reversal of 12570113 is 31107521.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31107521 = 187716573.

It is a cyclic number.

It is not a de Polignac number, because 12570113 - 28 = 12569857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12570119) 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, 6023 + ... + 7836.

It is an arithmetic number, because the mean of its divisors is an integer number (3146220).

Almost surely, 212570113 is an apocalyptic number.

It is an amenable number.

12570113 is a deficient number, since it is larger than the sum of its proper divisors (14767).

12570113 is an equidigital number, since it uses as much as digits as its factorization.

12570113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14766.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 12570113 is about 3545.4355162659. The cubic root of 12570113 is about 232.5125472089.

Adding to 12570113 its reverse (31107521), we get a palindrome (43677634).

The spelling of 12570113 in words is "twelve million, five hundred seventy thousand, one hundred thirteen".

Divisors: 1 907 13859 12570113