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38780053 = 132983081
BaseRepresentation
bin1001001111101…
…1110010010101
32200222020020021
42103323302111
534411430203
63503105141
7650424244
oct223736225
980866207
1038780053
111a988034
1210ba21b1
13805a4a0
14521695b
1536105bd
hex24fbc95

38780053 has 4 divisors (see below), whose sum is σ = 41763148. Its totient is φ = 35796960.

The previous prime is 38780017. The next prime is 38780089. The reversal of 38780053 is 35008783.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (38780017) and next prime (38780089).

It can be written as a sum of positive squares in 2 ways, for example, as 9381969 + 29398084 = 3063^2 + 5422^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-38780053 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 (38781053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1491528 + ... + 1491553.

It is an arithmetic number, because the mean of its divisors is an integer number (10440787).

Almost surely, 238780053 is an apocalyptic number.

It is an amenable number.

38780053 is a deficient number, since it is larger than the sum of its proper divisors (2983095).

38780053 is a wasteful number, since it uses less digits than its factorization.

38780053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2983094.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 38780053 is about 6227.3632461902. The cubic root of 38780053 is about 338.4824320131.

The spelling of 38780053 in words is "thirty-eight million, seven hundred eighty thousand, fifty-three".

Divisors: 1 13 2983081 38780053