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10143210221 = 158322732819
BaseRepresentation
bin10010111001001010…
…10001101011101101
3222011220020110121122
421130211101223231
5131233130211341
64354300110325
7506233602314
oct113445215355
928156213548
1010143210221
114335639a71
121b70b353a5
13c5857ca51
146c31a127b
153e574a94b
hex25c951aed

10143210221 has 8 divisors (see below), whose sum is σ = 10157685120. Its totient is φ = 10128748672.

The previous prime is 10143210179. The next prime is 10143210223. The reversal of 10143210221 is 12201234101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10143210221 is a prime.

It is a super-3 number, since 3×101432102213 (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10143210221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10143210223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3596750 + ... + 3599568.

It is an arithmetic number, because the mean of its divisors is an integer number (1269710640).

Almost surely, 210143210221 is an apocalyptic number.

It is an amenable number.

10143210221 is a deficient number, since it is larger than the sum of its proper divisors (14474899).

10143210221 is a wasteful number, since it uses less digits than its factorization.

10143210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6675.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 10143210221 its reverse (12201234101), we get a palindrome (22344444322).

The spelling of 10143210221 in words is "ten billion, one hundred forty-three million, two hundred ten thousand, two hundred twenty-one".

Divisors: 1 1583 2273 2819 3598159 4462477 6407587 10143210221