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52638004189 = 971932811709
BaseRepresentation
bin110001000001011110…
…000011001111011101
312000212102200200001201
4301001132003033131
51330300312113224
640103115035501
73542263440031
oct610136031735
9160772620051
1052638004189
1120361865701
12a25043bb91
134c6b45ac54
142794c261c1
151581280a44
hexc417833dd

52638004189 has 8 divisors (see below), whose sum is σ = 53456230520. Its totient is φ = 51825401856.

The previous prime is 52638004031. The next prime is 52638004241. The reversal of 52638004189 is 98140083625.

52638004189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 15710616964 + 36927387225 = 125342^2 + 192165^2 .

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 52638004189 - 213 = 52637995997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52638004789) 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, 1387134 + ... + 1424575.

It is an arithmetic number, because the mean of its divisors is an integer number (6682028815).

Almost surely, 252638004189 is an apocalyptic number.

It is an amenable number.

52638004189 is a deficient number, since it is larger than the sum of its proper divisors (818226331).

52638004189 is a wasteful number, since it uses less digits than its factorization.

52638004189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2811999.

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 52638004189 in words is "fifty-two billion, six hundred thirty-eight million, four thousand, one hundred eighty-nine".

Divisors: 1 97 193 18721 2811709 272735773 542659837 52638004189