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38130201 = 3217249217
BaseRepresentation
bin1001000101110…
…1001000011001
32122202012210200
42101131020121
534230131301
63441132413
7642046524
oct221351031
978665720
1038130201
111a58386a
121092a109
137b90765
1450c7bbb
153532c86
hex245d219

38130201 has 12 divisors (see below), whose sum is σ = 58317012. Its totient is φ = 23924736.

The previous prime is 38130193. The next prime is 38130203. The reversal of 38130201 is 10203183.

It can be written as a sum of positive squares in 2 ways, for example, as 13329801 + 24800400 = 3651^2 + 4980^2 .

It is not a de Polignac number, because 38130201 - 23 = 38130193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38130203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124456 + ... + 124761.

It is an arithmetic number, because the mean of its divisors is an integer number (4859751).

Almost surely, 238130201 is an apocalyptic number.

It is an amenable number.

38130201 is a deficient number, since it is larger than the sum of its proper divisors (20186811).

38130201 is a wasteful number, since it uses less digits than its factorization.

38130201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249240 (or 249237 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 38130201 is about 6174.9656679208. The cubic root of 38130201 is about 336.5810788982.

Adding to 38130201 its reverse (10203183), we get a palindrome (48333384).

The spelling of 38130201 in words is "thirty-eight million, one hundred thirty thousand, two hundred one".

Divisors: 1 3 9 17 51 153 249217 747651 2242953 4236689 12710067 38130201