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39147161 = 289713513
BaseRepresentation
bin1001010101010…
…1011010011001
32201122212210212
42111111122121
540010202121
63515020505
7653513444
oct225253231
981585725
1039147161
1120108929
121113a735
138158601
1452b065b
15368425b
hex2555699

39147161 has 4 divisors (see below), whose sum is σ = 39163572. Its totient is φ = 39130752.

The previous prime is 39147151. The next prime is 39147167. The reversal of 39147161 is 16174193.

39147161 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 can be written as a sum of positive squares in 2 ways, for example, as 11689561 + 27457600 = 3419^2 + 5240^2 .

It is a cyclic number.

It is not a de Polignac number, because 39147161 - 222 = 34952857 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (39147167) 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, 3860 + ... + 9653.

It is an arithmetic number, because the mean of its divisors is an integer number (9790893).

Almost surely, 239147161 is an apocalyptic number.

It is an amenable number.

39147161 is a deficient number, since it is larger than the sum of its proper divisors (16411).

39147161 is a wasteful number, since it uses less digits than its factorization.

39147161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16410.

The product of its digits is 4536, while the sum is 32.

The square root of 39147161 is about 6256.7692142191. The cubic root of 39147161 is about 339.5471508624.

The spelling of 39147161 in words is "thirty-nine million, one hundred forty-seven thousand, one hundred sixty-one".

Divisors: 1 2897 13513 39147161