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5440660445 = 511257384907
BaseRepresentation
bin1010001000100100…
…11110001111011101
3112001011120012001102
411010102132033131
542120302113240
62255512122445
7251552564543
oct50422361735
915034505042
105440660445
1123421247a0
12107a096425
1368923850c
1439880bd93
1521c99c815
hex14449e3dd

5440660445 has 16 divisors (see below), whose sum is σ = 7150051008. Its totient is φ = 3941437440.

The previous prime is 5440660439. The next prime is 5440660453.

5440660445 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5440660445 - 222 = 5436466141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5440660399 and 5440660408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178319 + ... + 206588.

It is an arithmetic number, because the mean of its divisors is an integer number (446878188).

Almost surely, 25440660445 is an apocalyptic number.

5440660445 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5440660445 is a deficient number, since it is larger than the sum of its proper divisors (1709390563).

5440660445 is a wasteful number, since it uses less digits than its factorization.

5440660445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385180.

The product of its (nonzero) digits is 230400, while the sum is 38.

The square root of 5440660445 is about 73760.8327298438. The cubic root of 5440660445 is about 1758.8030391247.

The spelling of 5440660445 in words is "five billion, four hundred forty million, six hundred sixty thousand, four hundred forty-five".

Divisors: 1 5 11 55 257 1285 2827 14135 384907 1924535 4233977 21169885 98921099 494605495 1088132089 5440660445