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201320210 = 257131971123
BaseRepresentation
bin10111111111111…
…10011100010010
3112000211010102002
423333332130102
5403014221320
631550554002
74663123250
oct1377763422
9460733362
10201320210
11a3704943
1257508902
133292a1b0
141ca475d0
1512a1a675
hexbffe712

201320210 has 64 divisors (see below), whose sum is σ = 448664832. Its totient is φ = 63334656.

The previous prime is 201320183. The next prime is 201320221. The reversal of 201320210 is 12023102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 201320191 and 201320200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 178709 + ... + 179831.

It is an arithmetic number, because the mean of its divisors is an integer number (7010388).

Almost surely, 2201320210 is an apocalyptic number.

201320210 is an abundant number, since it is smaller than the sum of its proper divisors (247344622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201320210 is a wasteful number, since it uses less digits than its factorization.

201320210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 201320210 is about 14188.7353206690. The cubic root of 201320210 is about 586.0874991166.

Adding to 201320210 its reverse (12023102), we get a palindrome (213343312).

The spelling of 201320210 in words is "two hundred one million, three hundred twenty thousand, two hundred ten".

Divisors: 1 2 5 7 10 13 14 26 35 65 70 91 130 182 197 394 455 910 985 1123 1379 1970 2246 2561 2758 5122 5615 6895 7861 11230 12805 13790 14599 15722 17927 25610 29198 35854 39305 72995 78610 89635 102193 145990 179270 204386 221231 442462 510965 1021930 1106155 1548617 2212310 2876003 3097234 5752006 7743085 14380015 15486170 20132021 28760030 40264042 100660105 201320210