Search a number
-
+
1208284511197 = 71131129909097
BaseRepresentation
bin10001100101010011010…
…111100111101111011101
311021111210102110212212111
4101211103113213233131
5124244031313324242
62323024522234021
7153203262612631
oct21452327475735
94244712425774
101208284511197
11426481119a65
12176210055911
1389c2ca6493a
14426a48d2dc1
152166c185817
hex119535e7bdd

1208284511197 has 8 divisors (see below), whose sum is σ = 1234656067392. Its totient is φ = 1182172773600.

The previous prime is 1208284511191. The next prime is 1208284511221. The reversal of 1208284511197 is 7911154828021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1208284511197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1208284511197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1208284511191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64945248 + ... + 64963849.

It is an arithmetic number, because the mean of its divisors is an integer number (154332008424).

Almost surely, 21208284511197 is an apocalyptic number.

It is an amenable number.

1208284511197 is a deficient number, since it is larger than the sum of its proper divisors (26371556195).

1208284511197 is a wasteful number, since it uses less digits than its factorization.

1208284511197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129909299.

The product of its (nonzero) digits is 322560, while the sum is 49.

The spelling of 1208284511197 in words is "one trillion, two hundred eight billion, two hundred eighty-four million, five hundred eleven thousand, one hundred ninety-seven".

Divisors: 1 71 131 9301 129909097 9223545887 17018091707 1208284511197