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10020110101 = 45132220277
BaseRepresentation
bin10010101010011111…
…01011111100010101
3221212022121022222221
421111033223330111
5131010122010401
64334141422341
7503210346661
oct112517537425
927768538887
1010020110101
114282100031
121b3786a9b1
13c38c0ba41
146b0ab98a1
153d9a317a1
hex2553ebf15

10020110101 has 4 divisors (see below), whose sum is σ = 10022334892. Its totient is φ = 10017885312.

The previous prime is 10020110099. The next prime is 10020110141. The reversal of 10020110101 is 10101102001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10101102001 = 28873498823.

It can be written as a sum of positive squares in 2 ways, for example, as 139948900 + 9880161201 = 11830^2 + 99399^2 .

It is a cyclic number.

It is not a de Polignac number, because 10020110101 - 21 = 10020110099 is a prime.

It is the 100101-st Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020110141) by changing a digit.

It is a nontrivial repunit in base 100100.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1105626 + ... + 1114651.

It is an arithmetic number, because the mean of its divisors is an integer number (2505583723).

Almost surely, 210020110101 is an apocalyptic number.

It is an amenable number.

10020110101 is a deficient number, since it is larger than the sum of its proper divisors (2224791).

10020110101 is an equidigital number, since it uses as much as digits as its factorization.

10020110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2224790.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 10020110101 its reverse (10101102001), we get a palindrome (20121212102).

The spelling of 10020110101 in words is "ten billion, twenty million, one hundred ten thousand, one hundred one".

Divisors: 1 4513 2220277 10020110101