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38196649 = 82746187
BaseRepresentation
bin1001000110110…
…1010110101001
32122212120221201
42101231112221
534234243044
63442404201
7642444331
oct221552651
978776851
1038196649
111a619787
1210960661
137bb4a8a
1451040c1
1535477d4
hex246d5a9

38196649 has 4 divisors (see below), whose sum is σ = 38243664. Its totient is φ = 38149636.

The previous prime is 38196607. The next prime is 38196673. The reversal of 38196649 is 94669183.

38196649 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38196649 - 213 = 38188457 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38196599 and 38196608.

It is not an unprimeable number, because it can be changed into a prime (38196149) 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, 22267 + ... + 23920.

It is an arithmetic number, because the mean of its divisors is an integer number (9560916).

Almost surely, 238196649 is an apocalyptic number.

It is an amenable number.

38196649 is a deficient number, since it is larger than the sum of its proper divisors (47015).

38196649 is an equidigital number, since it uses as much as digits as its factorization.

38196649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47014.

The product of its digits is 279936, while the sum is 46.

The square root of 38196649 is about 6180.3437606657. The cubic root of 38196649 is about 336.7764809671.

The spelling of 38196649 in words is "thirty-eight million, one hundred ninety-six thousand, six hundred forty-nine".

Divisors: 1 827 46187 38196649