Search a number
-
+
12952807717 = 31417832507
BaseRepresentation
bin11000001000000110…
…00010100100100101
31020102200222210211011
430010003002210211
5203011404321332
65541143342221
7635661022543
oct140403024445
936380883734
1012952807717
115547582173
122615a51971
1312b568a585
148ac3a2d93
1550c22de47
hex3040c2925

12952807717 has 4 divisors (see below), whose sum is σ = 13370640256. Its totient is φ = 12534975180.

The previous prime is 12952807709. The next prime is 12952807723. The reversal of 12952807717 is 71770825921.

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: 71770825921 = 148948200689.

It is a cyclic number.

It is not a de Polignac number, because 12952807717 - 23 = 12952807709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12952807727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208916223 + ... + 208916284.

It is an arithmetic number, because the mean of its divisors is an integer number (3342660064).

Almost surely, 212952807717 is an apocalyptic number.

It is an amenable number.

12952807717 is a deficient number, since it is larger than the sum of its proper divisors (417832539).

12952807717 is an equidigital number, since it uses as much as digits as its factorization.

12952807717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417832538.

The product of its (nonzero) digits is 493920, while the sum is 49.

The spelling of 12952807717 in words is "twelve billion, nine hundred fifty-two million, eight hundred seven thousand, seven hundred seventeen".

Divisors: 1 31 417832507 12952807717