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38763013 = 371047649
BaseRepresentation
bin1001001111011…
…1101000000101
32200221100212011
42103313220011
534410404023
63502454221
7650323462
oct223675005
980840764
1038763013
111a976253
1210b94371
1380527c3
145210669
15360a50d
hex24f7a05

38763013 has 4 divisors (see below), whose sum is σ = 39810700. Its totient is φ = 37715328.

The previous prime is 38763007. The next prime is 38763017. The reversal of 38763013 is 31036783.

38763013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31036783 = 167185849.

It can be written as a sum of positive squares in 2 ways, for example, as 35497764 + 3265249 = 5958^2 + 1807^2 .

It is a cyclic number.

It is not a de Polignac number, because 38763013 - 217 = 38631941 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 (38763017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 523788 + ... + 523861.

It is an arithmetic number, because the mean of its divisors is an integer number (9952675).

Almost surely, 238763013 is an apocalyptic number.

It is an amenable number.

38763013 is a deficient number, since it is larger than the sum of its proper divisors (1047687).

38763013 is a wasteful number, since it uses less digits than its factorization.

38763013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047686.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 38763013 is about 6225.9949405697. The cubic root of 38763013 is about 338.4328482263.

Adding to 38763013 its reverse (31036783), we get a palindrome (69799796).

It can be divided in two parts, 3876 and 3013, that added together give a square (6889 = 832).

The spelling of 38763013 in words is "thirty-eight million, seven hundred sixty-three thousand, thirteen".

Divisors: 1 37 1047649 38763013