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1442431341 = 331319216289
BaseRepresentation
bin101010111111001…
…1100000101101101
310201112012002211000
41111332130011231
510423230300331
6355044150513
750513315121
oct12576340555
93645162730
101442431341
1168024001a
12343098439
1319cab6b90
14d97d9581
15869770e6
hex55f9c16d

1442431341 has 32 divisors (see below), whose sum is σ = 2422448000. Its totient is φ = 840927744.

The previous prime is 1442431307. The next prime is 1442431349. The reversal of 1442431341 is 1431342441.

It is not a de Polignac number, because 1442431341 - 27 = 1442431213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442431349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101476 + ... + 114813.

It is an arithmetic number, because the mean of its divisors is an integer number (75701500).

Almost surely, 21442431341 is an apocalyptic number.

It is an amenable number.

1442431341 is a deficient number, since it is larger than the sum of its proper divisors (980016659).

1442431341 is a wasteful number, since it uses less digits than its factorization.

1442431341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216330 (or 216324 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 1442431341 is about 37979.3541414279. The cubic root of 1442431341 is about 1129.8784271537.

Adding to 1442431341 its reverse (1431342441), we get a palindrome (2873773782).

Subtracting from 1442431341 its reverse (1431342441), we obtain a square (11088900 = 33302).

The spelling of 1442431341 in words is "one billion, four hundred forty-two million, four hundred thirty-one thousand, three hundred forty-one".

Divisors: 1 3 9 13 19 27 39 57 117 171 247 351 513 741 2223 6669 216289 648867 1946601 2811757 4109491 5839803 8435271 12328473 25305813 36985419 53423383 75917439 110956257 160270149 480810447 1442431341