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1375852385 = 53147188861
BaseRepresentation
bin101001000000001…
…1101011101100001
310112212220112122202
41102000131131201
510304204234020
6344305142545
746044360305
oct12200353541
93485815582
101375852385
116466a6296
1232492aa55
1318c07554b
14d0a27d05
1580bc4e75
hex5201d761

1375852385 has 16 divisors (see below), whose sum is σ = 1740552192. Its totient is φ = 1042507200.

The previous prime is 1375852367. The next prime is 1375852393. The reversal of 1375852385 is 5832585731.

It is not a de Polignac number, because 1375852385 - 214 = 1375836001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 87146 + ... + 101715.

It is an arithmetic number, because the mean of its divisors is an integer number (108784512).

Almost surely, 21375852385 is an apocalyptic number.

It is an amenable number.

1375852385 is a deficient number, since it is larger than the sum of its proper divisors (364699807).

1375852385 is a wasteful number, since it uses less digits than its factorization.

1375852385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188944.

The product of its digits is 1008000, while the sum is 47.

The square root of 1375852385 is about 37092.4842117645. The cubic root of 1375852385 is about 1112.2197780946.

The spelling of 1375852385 in words is "one billion, three hundred seventy-five million, eight hundred fifty-two thousand, three hundred eighty-five".

Divisors: 1 5 31 47 155 235 1457 7285 188861 944305 5854691 8876467 29273455 44382335 275170477 1375852385