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1444438075 = 52471229309
BaseRepresentation
bin101011000011000…
…0110000000111011
310201122222001112111
41112012012000323
510424234004300
6355155153151
750536343503
oct12606060073
93648861474
101444438075
11681390783
123438a57b7
131a033a3b2
14d9b9ca03
1586c219ba
hex5618603b

1444438075 has 12 divisors (see below), whose sum is σ = 1829213280. Its totient is φ = 1130963360.

The previous prime is 1444438057. The next prime is 1444438091. The reversal of 1444438075 is 5708344441.

It is not a de Polignac number, because 1444438075 - 25 = 1444438043 is a prime.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 613480 + ... + 615829.

It is an arithmetic number, because the mean of its divisors is an integer number (152434440).

Almost surely, 21444438075 is an apocalyptic number.

1444438075 is a deficient number, since it is larger than the sum of its proper divisors (384775205).

1444438075 is a wasteful number, since it uses less digits than its factorization.

1444438075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229366 (or 1229361 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 40.

The square root of 1444438075 is about 38005.7637076273. The cubic root of 1444438075 is about 1130.4021527869.

The spelling of 1444438075 in words is "one billion, four hundred forty-four million, four hundred thirty-eight thousand, seventy-five".

Divisors: 1 5 25 47 235 1175 1229309 6146545 30732725 57777523 288887615 1444438075