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10021213441 = 36809272249
BaseRepresentation
bin10010101010100111…
…11001010100000001
3221212101200101111101
421111103321110001
5131010412312231
64334221214401
7503222623501
oct112523712401
927771611441
1010021213441
114282793a88
121b38101401
13c39206cc5
146b0cc5a01
153d9b9d661
hex2554f9501

10021213441 has 4 divisors (see below), whose sum is σ = 10021522500. Its totient is φ = 10020904384.

The previous prime is 10021213381. The next prime is 10021213451. The reversal of 10021213441 is 14431212001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14431212001 = 82317534887.

It can be written as a sum of positive squares in 2 ways, for example, as 7359066225 + 2662147216 = 85785^2 + 51596^2 .

It is a cyclic number.

It is not a de Polignac number, because 10021213441 - 229 = 9484342529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10021213451) 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, 99316 + ... + 172933.

It is an arithmetic number, because the mean of its divisors is an integer number (2505380625).

Almost surely, 210021213441 is an apocalyptic number.

It is an amenable number.

10021213441 is a deficient number, since it is larger than the sum of its proper divisors (309059).

10021213441 is an equidigital number, since it uses as much as digits as its factorization.

10021213441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309058.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 10021213441 its reverse (14431212001), we get a palindrome (24452425442).

The spelling of 10021213441 in words is "ten billion, twenty-one million, two hundred thirteen thousand, four hundred forty-one".

Divisors: 1 36809 272249 10021213441