Search a number
-
+
13111254215 = 55349476431
BaseRepresentation
bin11000011010111110…
…11101110011000111
31020211202010201112222
430031133131303013
5203322440113330
610005003402555
7642623551643
oct141537356307
936752121488
1013111254215
115618a63394
12265ab2345b
13130c455bb7
148c5449c23
1551b0cb0e5
hex30d7ddcc7

13111254215 has 8 divisors (see below), whose sum is σ = 16030363968. Its totient is φ = 10291097440.

The previous prime is 13111254203. The next prime is 13111254223. The reversal of 13111254215 is 51245211131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13111254215 - 28 = 13111253959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24737951 + ... + 24738480.

It is an arithmetic number, because the mean of its divisors is an integer number (2003795496).

Almost surely, 213111254215 is an apocalyptic number.

13111254215 is a deficient number, since it is larger than the sum of its proper divisors (2919109753).

13111254215 is an equidigital number, since it uses as much as digits as its factorization.

13111254215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49476489.

The product of its digits is 1200, while the sum is 26.

Adding to 13111254215 its reverse (51245211131), we get a palindrome (64356465346).

The spelling of 13111254215 in words is "thirteen billion, one hundred eleven million, two hundred fifty-four thousand, two hundred fifteen".

Divisors: 1 5 53 265 49476431 247382155 2622250843 13111254215