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4271957 = 12013557
BaseRepresentation
bin10000010010111101010101
322001001000122
4100102331111
52043200312
6231321325
751211454
oct20227525
98031018
104271957
112458648
121520245
13b675b1
147d2b9b
15595b72
hex412f55

4271957 has 4 divisors (see below), whose sum is σ = 4276716. Its totient is φ = 4267200.

The previous prime is 4271929. The next prime is 4271963. The reversal of 4271957 is 7591724.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 167281 + 4104676 = 409^2 + 2026^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-4271957 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 (4271357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578 + ... + 2979.

It is an arithmetic number, because the mean of its divisors is an integer number (1069179).

Almost surely, 24271957 is an apocalyptic number.

It is an amenable number.

4271957 is a deficient number, since it is larger than the sum of its proper divisors (4759).

4271957 is a wasteful number, since it uses less digits than its factorization.

4271957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4758.

The product of its digits is 17640, while the sum is 35.

The square root of 4271957 is about 2066.8713070726. The cubic root of 4271957 is about 162.2590606865.

The spelling of 4271957 in words is "four million, two hundred seventy-one thousand, nine hundred fifty-seven".

Divisors: 1 1201 3557 4271957