Search a number
-
+
211220303201 = 5921123970991
BaseRepresentation
bin1100010010110110110…
…1100000110101100001
3202012012022021010220122
43010231231200311201
511430034344200301
6241011104050025
721155143645145
oct3045555406541
9665168233818
10211220303201
118163a39a056
1234b29303915
1316bc1a8c23b
14a31a33b225
15576352d81b
hex312db60d61

211220303201 has 16 divisors (see below), whose sum is σ = 216724377600. Its totient is φ = 205788651600.

The previous prime is 211220303183. The next prime is 211220303207. The reversal of 211220303201 is 102303022112.

It is a cyclic number.

It is not a de Polignac number, because 211220303201 - 214 = 211220286817 is a prime.

It is a super-2 number, since 2×2112203032012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211220303201.

It is not an unprimeable number, because it can be changed into a prime (211220303207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2939816 + ... + 3010806.

It is an arithmetic number, because the mean of its divisors is an integer number (13545273600).

Almost surely, 2211220303201 is an apocalyptic number.

It is an amenable number.

211220303201 is a deficient number, since it is larger than the sum of its proper divisors (5504074399).

211220303201 is a wasteful number, since it uses less digits than its factorization.

211220303201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71500.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 211220303201 its reverse (102303022112), we get a palindrome (313523325313).

The spelling of 211220303201 in words is "two hundred eleven billion, two hundred twenty million, three hundred three thousand, two hundred one".

Divisors: 1 59 211 239 12449 14101 50429 70991 2975311 4188469 14979101 16966849 883766959 1001044091 3580005139 211220303201