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10212010013 = 27541370793
BaseRepresentation
bin10011000001010111…
…01110100000011101
3222100200200212012002
421200223232200131
5131403233310023
64405154452045
7511030436642
oct114053564035
928320625162
1010212010013
1143704602a7
121b8bb94025
13c698bb19a
146cc38ddc9
153eb7dab28
hex260aee81d

10212010013 has 4 divisors (see below), whose sum is σ = 10212408348. Its totient is φ = 10211611680.

The previous prime is 10212010001. The next prime is 10212010021. The reversal of 10212010013 is 31001021201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31001021201 = 231347870487.

It can be written as a sum of positive squares in 2 ways, for example, as 4621008484 + 5591001529 = 67978^2 + 74773^2 .

It is a cyclic number.

It is not a de Polignac number, because 10212010013 - 212 = 10212005917 is a prime.

It is a super-2 number, since 2×102120100132 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10212009976 and 10212010003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212010043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157856 + ... + 212937.

It is an arithmetic number, because the mean of its divisors is an integer number (2553102087).

Almost surely, 210212010013 is an apocalyptic number.

It is an amenable number.

10212010013 is a deficient number, since it is larger than the sum of its proper divisors (398335).

10212010013 is an equidigital number, since it uses as much as digits as its factorization.

10212010013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398334.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 10212010013 its reverse (31001021201), we get a palindrome (41213031214).

The spelling of 10212010013 in words is "ten billion, two hundred twelve million, ten thousand, thirteen".

Divisors: 1 27541 370793 10212010013