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4147057 = 7356809
BaseRepresentation
bin1111110100011101110001
321210200200201
433310131301
52030201212
6224515201
750151355
oct17643561
97720621
104147057
112382822
12147bb01
13b227a5
1479d465
1556db57
hex3f4771

4147057 has 4 divisors (see below), whose sum is σ = 4203940. Its totient is φ = 4090176.

The previous prime is 4147043. The next prime is 4147079. The reversal of 4147057 is 7507414.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7507414 = 23753707.

It can be written as a sum of positive squares in 2 ways, for example, as 776161 + 3370896 = 881^2 + 1836^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-4147057 is a prime.

It is a super-2 number, since 2×41470572 = 34396163522498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4147007) 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, 28332 + ... + 28477.

It is an arithmetic number, because the mean of its divisors is an integer number (1050985).

Almost surely, 24147057 is an apocalyptic number.

It is an amenable number.

4147057 is a deficient number, since it is larger than the sum of its proper divisors (56883).

4147057 is an equidigital number, since it uses as much as digits as its factorization.

4147057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56882.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 4147057 is about 2036.4324196987. The cubic root of 4147057 is about 160.6620613760.

The spelling of 4147057 in words is "four million, one hundred forty-seven thousand, fifty-seven".

Divisors: 1 73 56809 4147057