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10021033213 = 61164279233
BaseRepresentation
bin10010101010100110…
…01101010011111101
3221212101100020021021
421111103031103331
5131010341030323
64334213304141
7503221243162
oct112523152375
927771306237
1010021033213
114282680634
121b38035051
13c39172c69
146b0c7a069
153d9b6505d
hex2554cd4fd

10021033213 has 4 divisors (see below), whose sum is σ = 10185312508. Its totient is φ = 9856753920.

The previous prime is 10021033199. The next prime is 10021033273. The reversal of 10021033213 is 31233012001.

10021033213 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31233012001 = 68634550927.

It can be written as a sum of positive squares in 2 ways, for example, as 2981487609 + 7039545604 = 54603^2 + 83902^2 .

It is a cyclic number.

It is not a de Polignac number, because 10021033213 - 221 = 10018936061 is a prime.

It is a super-2 number, since 2×100210332132 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021033273) 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 3 ways as a sum of consecutive naturals, for example, 82139556 + ... + 82139677.

It is an arithmetic number, because the mean of its divisors is an integer number (2546328127).

Almost surely, 210021033213 is an apocalyptic number.

It is an amenable number.

10021033213 is a deficient number, since it is larger than the sum of its proper divisors (164279295).

10021033213 is an equidigital number, since it uses as much as digits as its factorization.

10021033213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164279294.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 10021033213 its reverse (31233012001), we get a palindrome (41254045214).

The spelling of 10021033213 in words is "ten billion, twenty-one million, thirty-three thousand, two hundred thirteen".

Divisors: 1 61 164279233 10021033213