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38335250813 = 13722042477
BaseRepresentation
bin100011101100111101…
…011000000101111101
310122221122112111221012
4203230331120011331
51112002311011223
625335545245005
72524661153426
oct435475300575
9118848474835
1038335250813
1115292282372
12751a493765
1337cc1c8c82
141bd946064d
15ee5797c78
hex8ecf5817d

38335250813 has 6 divisors (see below), whose sum is σ = 38617131546. Its totient is φ = 38055412832.

The previous prime is 38335250773. The next prime is 38335250819. The reversal of 38335250813 is 31805253383.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 3887148409 + 34448102404 = 62347^2 + 185602^2 .

It is not a de Polignac number, because 38335250813 - 28 = 38335250557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38335250819) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1002470 + ... + 1040007.

It is an arithmetic number, because the mean of its divisors is an integer number (6436188591).

Almost surely, 238335250813 is an apocalyptic number.

It is an amenable number.

38335250813 is a deficient number, since it is larger than the sum of its proper divisors (281880733).

38335250813 is an equidigital number, since it uses as much as digits as its factorization.

38335250813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2042751 (or 2042614 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 38335250813 in words is "thirty-eight billion, three hundred thirty-five million, two hundred fifty thousand, eight hundred thirteen".

Divisors: 1 137 18769 2042477 279819349 38335250813