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5218020053 = 37383336793
BaseRepresentation
bin1001101110000010…
…01010101011010101
3111110122121212211222
410313001022223111
541141303120203
62221440140125
7243210303311
oct46701125325
914418555758
105218020053
112238488774
121017607645
1365208503c
14377014b41
15208170038
hex13704aad5

5218020053 has 8 divisors (see below), whose sum is σ = 5360591448. Its totient is φ = 5075529984.

The previous prime is 5218020011. The next prime is 5218020061. The reversal of 5218020053 is 3500208125.

It can be written as a sum of positive squares in 4 ways, for example, as 219247249 + 4998772804 = 14807^2 + 70702^2 .

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 5218020053 - 210 = 5218019029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5218023053) 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, 123425 + ... + 160217.

It is an arithmetic number, because the mean of its divisors is an integer number (670073931).

Almost surely, 25218020053 is an apocalyptic number.

It is an amenable number.

5218020053 is a deficient number, since it is larger than the sum of its proper divisors (142571395).

5218020053 is a wasteful number, since it uses less digits than its factorization.

5218020053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40663.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 5218020053 is about 72235.8640358098. The cubic root of 5218020053 is about 1734.4771437580.

Adding to 5218020053 its reverse (3500208125), we get a palindrome (8718228178).

The spelling of 5218020053 in words is "five billion, two hundred eighteen million, twenty thousand, fifty-three".

Divisors: 1 37 3833 36793 141821 1361341 141027569 5218020053