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212140201 = 71323791283
BaseRepresentation
bin11001010010100…
…00000010101001
3112210011211122111
430221100002221
5413301441301
633014522321
75154106360
oct1451200251
9483154574
10212140201
11a9825089
125b0663a1
1334c48060
14202627d7
1513956551
hexca500a9

212140201 has 32 divisors (see below), whose sum is σ = 276111360. Its totient is φ = 158393664.

The previous prime is 212140189. The next prime is 212140207. The reversal of 212140201 is 102041212.

It is a happy number.

It is not a de Polignac number, because 212140201 - 217 = 212009129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (212140207) 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, 164706 + ... + 165988.

It is an arithmetic number, because the mean of its divisors is an integer number (8628480).

Almost surely, 2212140201 is an apocalyptic number.

It is an amenable number.

212140201 is a deficient number, since it is larger than the sum of its proper divisors (63971159).

212140201 is a wasteful number, since it uses less digits than its factorization.

212140201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 212140201 is about 14565.0335049391. The cubic root of 212140201 is about 596.4046103602.

Adding to 212140201 its reverse (102041212), we get a palindrome (314181413).

The spelling of 212140201 in words is "two hundred twelve million, one hundred forty thousand, two hundred one".

Divisors: 1 7 13 23 79 91 161 299 553 1027 1283 1817 2093 7189 8981 12719 16679 23621 29509 101357 116753 165347 206563 383617 709499 1317641 2331211 2685319 9223487 16318477 30305743 212140201