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1375420585 = 571123155327
BaseRepresentation
bin101000111111011…
…0100000010101001
310112212002121100011
41101332310002221
510304101424320
6344252011521
746040611360
oct12176640251
93485077304
101375420585
11646430930
12324760ba1
1318bc53b46
14d09547d7
1580b3c05a
hex51fb40a9

1375420585 has 32 divisors (see below), whose sum is σ = 2147254272. Its totient is φ = 820121280.

The previous prime is 1375420577. The next prime is 1375420681. The reversal of 1375420585 is 5850245731.

It is not a de Polignac number, because 1375420585 - 23 = 1375420577 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68809 + ... + 86518.

It is an arithmetic number, because the mean of its divisors is an integer number (67101696).

Almost surely, 21375420585 is an apocalyptic number.

It is an amenable number.

1375420585 is a deficient number, since it is larger than the sum of its proper divisors (771833687).

1375420585 is a wasteful number, since it uses less digits than its factorization.

1375420585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155373.

The product of its (nonzero) digits is 168000, while the sum is 40.

The square root of 1375420585 is about 37086.6631688536. The cubic root of 1375420585 is about 1112.1034122316.

The spelling of 1375420585 in words is "one billion, three hundred seventy-five million, four hundred twenty thousand, five hundred eighty-five".

Divisors: 1 5 7 11 23 35 55 77 115 161 253 385 805 1265 1771 8855 155327 776635 1087289 1708597 3572521 5436445 8542985 11960179 17862605 25007647 39297731 59800895 125038235 196488655 275084117 1375420585