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243411441 = 3713891617
BaseRepresentation
bin11101000001000…
…10100111110001
3121222000120201120
432200202213301
5444303131231
640053052453
76013651230
oct1640424761
9558016646
10243411441
11115443689
1269627129
133b576850
1424482b17
1516581d96
hexe8229f1

243411441 has 16 divisors (see below), whose sum is σ = 399444864. Its totient is φ = 128392704.

The previous prime is 243411367. The next prime is 243411463. The reversal of 243411441 is 144114342.

It is not a de Polignac number, because 243411441 - 218 = 243149297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243411041) 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 15 ways as a sum of consecutive naturals, for example, 445536 + ... + 446081.

It is an arithmetic number, because the mean of its divisors is an integer number (24965304).

Almost surely, 2243411441 is an apocalyptic number.

243411441 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

243411441 is a deficient number, since it is larger than the sum of its proper divisors (156033423).

243411441 is a wasteful number, since it uses less digits than its factorization.

243411441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891640.

The product of its digits is 1536, while the sum is 24.

The square root of 243411441 is about 15601.6486628818. The cubic root of 243411441 is about 624.3771424705.

Adding to 243411441 its reverse (144114342), we get a palindrome (387525783).

The spelling of 243411441 in words is "two hundred forty-three million, four hundred eleven thousand, four hundred forty-one".

Divisors: 1 3 7 13 21 39 91 273 891617 2674851 6241319 11591021 18723957 34773063 81137147 243411441