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228024029 = 383595363
BaseRepresentation
bin11011001011101…
…01111011011101
3120220001211011102
431211311323131
5431333232104
634343202445
75436113042
oct1545657335
9526054142
10228024029
11107793912
1264446425
1338319a7c
14223d91c9
1515042a1e
hexd975edd

228024029 has 4 divisors (see below), whose sum is σ = 228619776. Its totient is φ = 227428284.

The previous prime is 228024019. The next prime is 228024031. The reversal of 228024029 is 920420822.

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, and also an emirpimes, since its reverse is a distinct semiprime: 920420822 = 2460210411.

It is a cyclic number.

It is not a de Polignac number, because 228024029 - 224 = 211246813 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 228023992 and 228024010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228024019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297299 + ... + 298064.

It is an arithmetic number, because the mean of its divisors is an integer number (57154944).

Almost surely, 2228024029 is an apocalyptic number.

It is an amenable number.

228024029 is a deficient number, since it is larger than the sum of its proper divisors (595747).

228024029 is an equidigital number, since it uses as much as digits as its factorization.

228024029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595746.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 228024029 is about 15100.4645292786. The cubic root of 228024029 is about 610.9329350666.

The spelling of 228024029 in words is "two hundred twenty-eight million, twenty-four thousand, twenty-nine".

Divisors: 1 383 595363 228024029