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38268979 = 75466997
BaseRepresentation
bin1001000111111…
…1000000110011
32200000021011121
42101333000303
534244101404
63444123111
7643165240
oct221770063
980007147
1038268979
111a669061
1210996497
137c0b988
1451225c7
15355de54
hex247f033

38268979 has 4 divisors (see below), whose sum is σ = 43735984. Its totient is φ = 32801976.

The previous prime is 38268961. The next prime is 38269003. The reversal of 38268979 is 97986283.

38268979 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.

It is a cyclic number.

It is not a de Polignac number, because 38268979 - 27 = 38268851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38268179) 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, 2733492 + ... + 2733505.

It is an arithmetic number, because the mean of its divisors is an integer number (10933996).

Almost surely, 238268979 is an apocalyptic number.

38268979 is a deficient number, since it is larger than the sum of its proper divisors (5467005).

38268979 is an equidigital number, since it uses as much as digits as its factorization.

38268979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5467004.

The product of its digits is 1306368, while the sum is 52.

The square root of 38268979 is about 6186.1926093519. The cubic root of 38268979 is about 336.9889226695.

The spelling of 38268979 in words is "thirty-eight million, two hundred sixty-eight thousand, nine hundred seventy-nine".

Divisors: 1 7 5466997 38268979