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1024201013221 = 3898093254521
BaseRepresentation
bin11101110011101110010…
…00110011011111100101
310121220122022220021111001
432321313020303133211
5113240030424410341
62102302250113301
7133665440653621
oct16716710633745
93556568807431
101024201013221
113653a7853371
121465b6a1b831
13757741153c9
143780064a181
151b996211d31
hexee772337e5

1024201013221 has 8 divisors (see below), whose sum is σ = 1028103499800. Its totient is φ = 1020305038080.

The previous prime is 1024201013183. The next prime is 1024201013273. The reversal of 1024201013221 is 1223101024201.

It can be written as a sum of positive squares in 4 ways, for example, as 319919196996 + 704281816225 = 565614^2 + 839215^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1024201013221 - 27 = 1024201013093 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 (1024201010221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1312560 + ... + 1941961.

It is an arithmetic number, because the mean of its divisors is an integer number (128512937475).

Almost surely, 21024201013221 is an apocalyptic number.

It is an amenable number.

1024201013221 is a deficient number, since it is larger than the sum of its proper divisors (3902486579).

1024201013221 is an equidigital number, since it uses as much as digits as its factorization.

1024201013221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3255719.

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

Adding to 1024201013221 its reverse (1223101024201), we get a palindrome (2247302037422).

The spelling of 1024201013221 in words is "one trillion, twenty-four billion, two hundred one million, thirteen thousand, two hundred twenty-one".

Divisors: 1 389 809 314701 3254521 1266008669 2632907489 1024201013221