Search a number
-
+
2069506985 = 571317267551
BaseRepresentation
bin111101101011010…
…0010101110101001
312100020010211212212
41323112202232221
513214243210420
6541204414505
7102166343030
oct17326425651
95306124785
102069506985
11972201257
124990a7435
1326c9a2660
14158bcd717
15c1a423c5
hex7b5a2ba9

2069506985 has 32 divisors (see below), whose sum is σ = 3236308992. Its totient is φ = 1232870400.

The previous prime is 2069506981. The next prime is 2069506991. The reversal of 2069506985 is 5896059602.

It is not a de Polignac number, because 2069506985 - 22 = 2069506981 is a prime.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2069506981) 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, 126041 + ... + 141510.

It is an arithmetic number, because the mean of its divisors is an integer number (101134656).

Almost surely, 22069506985 is an apocalyptic number.

It is an amenable number.

2069506985 is a deficient number, since it is larger than the sum of its proper divisors (1166802007).

2069506985 is a wasteful number, since it uses less digits than its factorization.

2069506985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267593.

The product of its (nonzero) digits is 1166400, while the sum is 50.

The square root of 2069506985 is about 45491.8342672616. The cubic root of 2069506985 is about 1274.3507108023.

The spelling of 2069506985 in words is "two billion, sixty-nine million, five hundred six thousand, nine hundred eighty-five".

Divisors: 1 5 7 13 17 35 65 85 91 119 221 455 595 1105 1547 7735 267551 1337755 1872857 3478163 4548367 9364285 17390815 22741835 24347141 31838569 59128771 121735705 159192845 295643855 413901397 2069506985