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244201332221 = 71123673204887
BaseRepresentation
bin1110001101101110001…
…0001001110111111101
3212100022210220000022222
43203123202021313331
513000111020112341
6304103510015125
723433352034540
oct3433342116775
9770283800288
10244201332221
1194624316330
123b3b26474a5
131a049925922
14bb68650857
156543c0044b
hex38db889dfd

244201332221 has 32 divisors (see below), whose sum is σ = 318169755648. Its totient is φ = 181742077440.

The previous prime is 244201332209. The next prime is 244201332223. The reversal of 244201332221 is 122233102442.

It is not a de Polignac number, because 244201332221 - 26 = 244201332157 is a prime.

It is a super-2 number, since 2×2442013322212 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244201332223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1089440 + ... + 1294326.

It is an arithmetic number, because the mean of its divisors is an integer number (9942804864).

Almost surely, 2244201332221 is an apocalyptic number.

It is an amenable number.

244201332221 is a deficient number, since it is larger than the sum of its proper divisors (73968423427).

244201332221 is a wasteful number, since it uses less digits than its factorization.

244201332221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205601.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 244201332221 its reverse (122233102442), we get a palindrome (366434434663).

The spelling of 244201332221 in words is "two hundred forty-four billion, two hundred one million, three hundred thirty-two thousand, two hundred twenty-one".

Divisors: 1 7 11 23 77 161 253 673 1771 4711 7403 15479 51821 108353 170269 204887 1191883 1434209 2253757 4712401 15776299 32986807 51836411 137888951 362854877 965222657 1516778461 3171445873 10617449227 22200121111 34885904603 244201332221