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2010320221 = 71323960497
BaseRepresentation
bin111011111010011…
…0000110101011101
312012002202211220111
41313310300311131
513104120221341
6531252050021
7100550303620
oct16764606535
95162684814
102010320221
11941856378
12481303911
1326064b8c0
14150dc3db7
15bb750681
hex77d30d5d

2010320221 has 16 divisors (see below), whose sum is σ = 2581818624. Its totient is φ = 1521425664.

The previous prime is 2010320197. The next prime is 2010320269. The reversal of 2010320221 is 1220230102.

It is a cyclic number.

It is not a de Polignac number, because 2010320221 - 27 = 2010320093 is a prime.

It is a super-2 number, since 2×20103202212 = 8082774781922977682, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2010320321) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 478156 + ... + 482341.

It is an arithmetic number, because the mean of its divisors is an integer number (161363664).

Almost surely, 22010320221 is an apocalyptic number.

It is an amenable number.

2010320221 is a deficient number, since it is larger than the sum of its proper divisors (571498403).

2010320221 is a wasteful number, since it uses less digits than its factorization.

2010320221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960540.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2010320221 is about 44836.5946632882. The cubic root of 2010320221 is about 1262.0844436468.

Adding to 2010320221 its reverse (1220230102), we get a palindrome (3230550323).

The spelling of 2010320221 in words is "two billion, ten million, three hundred twenty thousand, two hundred twenty-one".

Divisors: 1 7 13 23 91 161 299 2093 960497 6723479 12486461 22091431 87405227 154640017 287188603 2010320221