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5218913713 = 131013974801
BaseRepresentation
bin1001101110001001…
…00100110110110001
3111110201022021201111
410313010210312301
541142020214323
62221511233321
7243221014606
oct46704446661
914421267644
105218913713
112238a39132
121017978841
13652308a30
143771a86ad
15208299c0d
hex137124db1

5218913713 has 8 divisors (see below), whose sum is σ = 5676017256. Its totient is φ = 4769760000.

The previous prime is 5218913681. The next prime is 5218913729. The reversal of 5218913713 is 3173198125.

It can be written as a sum of positive squares in 4 ways, for example, as 2423888289 + 2795025424 = 49233^2 + 52868^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 5218913713 - 25 = 5218913681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5218913753) 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, 1986088 + ... + 1988713.

It is an arithmetic number, because the mean of its divisors is an integer number (709502157).

Almost surely, 25218913713 is an apocalyptic number.

It is an amenable number.

5218913713 is a deficient number, since it is larger than the sum of its proper divisors (457103543).

5218913713 is a wasteful number, since it uses less digits than its factorization.

5218913713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3974915.

The product of its digits is 45360, while the sum is 40.

The square root of 5218913713 is about 72242.0494795102. The cubic root of 5218913713 is about 1734.5761560493.

The spelling of 5218913713 in words is "five billion, two hundred eighteen million, nine hundred thirteen thousand, seven hundred thirteen".

Divisors: 1 13 101 1313 3974801 51672413 401454901 5218913713