Search a number
-
+
13020202213031 = 133171455044987
BaseRepresentation
bin1011110101111000000010…
…0001110001111010100111
31201002201102021112021122202
42331132000201301322213
53201310333231304111
643405222012045115
72512451514520556
oct275360041617247
951081367467582
1013020202213031
11416a922793422
12156349b46379b
13735a52213720
14330277107d9d
15178a43047b3b
hexbd780871ea7

13020202213031 has 16 divisors (see below), whose sum is σ = 14677931132928. Its totient is φ = 11467133647200.

The previous prime is 13020202213027. The next prime is 13020202213043. The reversal of 13020202213031 is 13031220202031.

It is a cyclic number.

It is not a de Polignac number, because 13020202213031 - 22 = 13020202213027 is a prime.

It is a super-2 number, since 2×130202022130312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13020202212994 and 13020202213012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13020202213061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227493881 + ... + 227551106.

It is an arithmetic number, because the mean of its divisors is an integer number (917370695808).

Almost surely, 213020202213031 is an apocalyptic number.

13020202213031 is a deficient number, since it is larger than the sum of its proper divisors (1657728919897).

13020202213031 is a wasteful number, since it uses less digits than its factorization.

13020202213031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455045102.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13020202213031 its reverse (13031220202031), we get a palindrome (26051422415062).

The spelling of 13020202213031 in words is "thirteen trillion, twenty billion, two hundred two million, two hundred thirteen thousand, thirty-one".

Divisors: 1 13 31 71 403 923 2201 28613 455044987 5915584831 14106394597 32308194077 183383129761 420006523001 1001554016387 13020202213031