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38440053 = 324271117
BaseRepresentation
bin1001001010100…
…0110001110101
32200022221211200
42102220301311
534320040203
63451523113
7644510061
oct222506165
980287750
1038440053
111a775643
1210a59499
137c6b7c2
145168aa1
1535949a3
hex24a8c75

38440053 has 6 divisors (see below), whose sum is σ = 55524534. Its totient is φ = 25626696.

The previous prime is 38440027. The next prime is 38440067. The reversal of 38440053 is 35004483.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 37859409 + 580644 = 6153^2 + 762^2 .

It is not a de Polignac number, because 38440053 - 214 = 38423669 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 38439999 and 38440026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38440013) 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, 2135550 + ... + 2135567.

It is an arithmetic number, because the mean of its divisors is an integer number (9254089).

Almost surely, 238440053 is an apocalyptic number.

It is an amenable number.

38440053 is a deficient number, since it is larger than the sum of its proper divisors (17084481).

38440053 is a wasteful number, since it uses less digits than its factorization.

38440053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4271123 (or 4271120 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 38440053 is about 6200.0042741921. The cubic root of 38440053 is about 337.4903240024.

The spelling of 38440053 in words is "thirty-eight million, four hundred forty thousand, fifty-three".

Divisors: 1 3 9 4271117 12813351 38440053