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229933769 = 1353333721
BaseRepresentation
bin11011011010010…
…00001011001001
3121000122211211112
431231020023021
5432330340034
634452140105
75461255562
oct1555101311
9530584745
10229933769
1110887870a
1265007635
13388380b0
1422775169
15152bd7ce
hexdb482c9

229933769 has 8 divisors (see below), whose sum is σ = 252293832. Its totient is φ = 208241280.

The previous prime is 229933741. The next prime is 229933777. The reversal of 229933769 is 967339922.

It can be written as a sum of positive squares in 4 ways, for example, as 50239744 + 179694025 = 7088^2 + 13405^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-229933769 is a prime.

It is a super-2 number, since 2×2299337692 = 105739076253090722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229933709) 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 7 ways as a sum of consecutive naturals, for example, 166172 + ... + 167549.

It is an arithmetic number, because the mean of its divisors is an integer number (31536729).

Almost surely, 2229933769 is an apocalyptic number.

It is an amenable number.

229933769 is a deficient number, since it is larger than the sum of its proper divisors (22360063).

229933769 is a wasteful number, since it uses less digits than its factorization.

229933769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333787.

The product of its digits is 1102248, while the sum is 50.

The square root of 229933769 is about 15163.5671594780. The cubic root of 229933769 is about 612.6337513821.

It can be divided in two parts, 22993 and 3769, that added together give a palindrome (26762).

The spelling of 229933769 in words is "two hundred twenty-nine million, nine hundred thirty-three thousand, seven hundred sixty-nine".

Divisors: 1 13 53 689 333721 4338373 17687213 229933769