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556141 = 4211321
BaseRepresentation
bin10000111110001101101
31001020212211
42013301231
5120244031
615530421
74504255
oct2076155
91036784
10556141
1134a923
12229a11
131661a1
14106965
15aebb1
hex87c6d

556141 has 4 divisors (see below), whose sum is σ = 557884. Its totient is φ = 554400.

The previous prime is 556123. The next prime is 556159. The reversal of 556141 is 141655.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (556123) and next prime (556159).

It can be written as a sum of positive squares in 2 ways, for example, as 220900 + 335241 = 470^2 + 579^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-556141 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 (556181) 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, 240 + ... + 1081.

It is an arithmetic number, because the mean of its divisors is an integer number (139471).

2556141 is an apocalyptic number.

It is an amenable number.

556141 is a deficient number, since it is larger than the sum of its proper divisors (1743).

556141 is a wasteful number, since it uses less digits than its factorization.

556141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742.

The product of its digits is 600, while the sum is 22.

The square root of 556141 is about 745.7486171626. The cubic root of 556141 is about 82.2359356100.

Adding to 556141 its reverse (141655), we get a palindrome (697796).

The spelling of 556141 in words is "five hundred fifty-six thousand, one hundred forty-one".

Divisors: 1 421 1321 556141