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228029 = 435303
BaseRepresentation
bin110111101010111101
3102120210112
4313222331
524244104
64515405
71636544
oct675275
9376715
10228029
1114635a
12abb65
137ca39
145d15b
154786e
hex37abd

228029 has 4 divisors (see below), whose sum is σ = 233376. Its totient is φ = 222684.

The previous prime is 228023. The next prime is 228049. The reversal of 228029 is 920822.

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 228029 - 24 = 228013 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 227995 and 228013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228023) 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, 2609 + ... + 2694.

It is an arithmetic number, because the mean of its divisors is an integer number (58344).

2228029 is an apocalyptic number.

It is an amenable number.

228029 is a deficient number, since it is larger than the sum of its proper divisors (5347).

228029 is an equidigital number, since it uses as much as digits as its factorization.

228029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5346.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 228029 is about 477.5238213953. The cubic root of 228029 is about 61.0937374548.

The spelling of 228029 in words is "two hundred twenty-eight thousand, twenty-nine".

Divisors: 1 43 5303 228029