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10210220101 = 21157482593
BaseRepresentation
bin10011000001001001…
…11001100001000101
3222100120022220220001
421200210321201011
5131402304020401
64405052241301
7511006303354
oct114044714105
928316286801
1010210220101
11436a448534
121b8b470231
13c69412573
146cc04599b
153eb585601
hex260939845

10210220101 has 4 divisors (see below), whose sum is σ = 10210723852. Its totient is φ = 10209716352.

The previous prime is 10210220089. The next prime is 10210220123. The reversal of 10210220101 is 10102201201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1746404100 + 8463816001 = 41790^2 + 91999^2 .

It is a cyclic number.

It is not a de Polignac number, because 10210220101 - 219 = 10209695813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10210220401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220140 + ... + 262453.

It is an arithmetic number, because the mean of its divisors is an integer number (2552680963).

Almost surely, 210210220101 is an apocalyptic number.

It is an amenable number.

10210220101 is a deficient number, since it is larger than the sum of its proper divisors (503751).

10210220101 is an equidigital number, since it uses as much as digits as its factorization.

10210220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503750.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10210220101 its reverse (10102201201), we get a palindrome (20312421302).

The spelling of 10210220101 in words is "ten billion, two hundred ten million, two hundred twenty thousand, one hundred one".

Divisors: 1 21157 482593 10210220101