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244212231 = 3724311239
BaseRepresentation
bin11101000111001…
…10001000000111
3122000112021012110
432203212020013
51000004242411
640122152103
76023525004
oct1643461007
9560467173
10244212231
1111594029a
1269952633
133b7971a3
14246108ab
151668e2a6
hexe8e6207

244212231 has 8 divisors (see below), whose sum is σ = 325690240. Its totient is φ = 162771192.

The previous prime is 244212217. The next prime is 244212233. The reversal of 244212231 is 132212442.

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

It is not a de Polignac number, because 244212231 - 29 = 244211719 is a prime.

It is a super-2 number, since 2×2442122312 = 119279227539994722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 244212198 and 244212207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244212233) 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, 16110 + ... + 27348.

It is an arithmetic number, because the mean of its divisors is an integer number (40711280).

Almost surely, 2244212231 is an apocalyptic number.

244212231 is a deficient number, since it is larger than the sum of its proper divisors (81478009).

244212231 is a wasteful number, since it uses less digits than its factorization.

244212231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18485.

The product of its digits is 768, while the sum is 21.

The square root of 244212231 is about 15627.2912240094. The cubic root of 244212231 is about 625.0610978138.

Adding to 244212231 its reverse (132212442), we get a palindrome (376424673).

The spelling of 244212231 in words is "two hundred forty-four million, two hundred twelve thousand, two hundred thirty-one".

Divisors: 1 3 7243 11239 21729 33717 81404077 244212231