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1669141375 = 53111213921
BaseRepresentation
bin110001101111101…
…0001001101111111
311022022210011111221
41203133101031333
511404300011000
6433343254211
756235316246
oct14337211577
94268704457
101669141375
11787206690
123a6baa367
13207a63825
1411b97195d
159b80a61a
hex637d137f

1669141375 has 16 divisors (see below), whose sum is σ = 2272461984. Its totient is φ = 1213920000.

The previous prime is 1669141367. The next prime is 1669141381. The reversal of 1669141375 is 5731419661.

It is not a de Polignac number, because 1669141375 - 23 = 1669141367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 605586 + ... + 608335.

It is an arithmetic number, because the mean of its divisors is an integer number (142028874).

Almost surely, 21669141375 is an apocalyptic number.

1669141375 is a deficient number, since it is larger than the sum of its proper divisors (603320609).

1669141375 is a wasteful number, since it uses less digits than its factorization.

1669141375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213947 (or 1213937 counting only the distinct ones).

The product of its digits is 136080, while the sum is 43.

The square root of 1669141375 is about 40855.1266672862. The cubic root of 1669141375 is about 1186.2176295287.

The spelling of 1669141375 in words is "one billion, six hundred sixty-nine million, one hundred forty-one thousand, three hundred seventy-five".

Divisors: 1 5 11 25 55 125 275 1375 1213921 6069605 13353131 30348025 66765655 151740125 333828275 1669141375