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5213261315431 = 13401020101187
BaseRepresentation
bin100101111011100111010…
…0101101011110101100111
3200110101100010220102202101
41023313032211223311213
51140403224344043211
615030534510352531
71045434322014301
oct113671645536547
920411303812671
105213261315431
11172aa28115284
127024467bb747
132ba7ba95a040
14140474bb6971
15909200145c1
hex4bdce96bd67

5213261315431 has 4 divisors (see below), whose sum is σ = 5614281416632. Its totient is φ = 4812241214232.

The previous prime is 5213261315413. The next prime is 5213261315503. The reversal of 5213261315431 is 1345131623125.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5213261315431 - 27 = 5213261315303 is a prime.

It is a super-2 number, since 2×52132613154312 (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5213261315401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200510050581 + ... + 200510050606.

It is an arithmetic number, because the mean of its divisors is an integer number (1403570354158).

Almost surely, 25213261315431 is an apocalyptic number.

5213261315431 is a deficient number, since it is larger than the sum of its proper divisors (401020101201).

5213261315431 is a wasteful number, since it uses less digits than its factorization.

5213261315431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401020101200.

The product of its digits is 64800, while the sum is 37.

Adding to 5213261315431 its reverse (1345131623125), we get a palindrome (6558392938556).

The spelling of 5213261315431 in words is "five trillion, two hundred thirteen billion, two hundred sixty-one million, three hundred fifteen thousand, four hundred thirty-one".

Divisors: 1 13 401020101187 5213261315431