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10001450221 = 7329158747
BaseRepresentation
bin10010101000010001…
…00000010011101101
3221211000111022110021
421110020200103231
5130440332401341
64332233442141
7502562632000
oct112410402355
927730438407
1010001450221
114272615644
121b31570351
13c350a75a9
146ac41d537
153d80979d1
hex2542204ed

10001450221 has 8 divisors (see below), whose sum is σ = 11663499200. Its totient is φ = 8572671324.

The previous prime is 10001450219. The next prime is 10001450243. The reversal of 10001450221 is 12205410001.

It is not a de Polignac number, because 10001450221 - 21 = 10001450219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10001450195 and 10001450204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001450321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14579031 + ... + 14579716.

It is an arithmetic number, because the mean of its divisors is an integer number (1457937400).

Almost surely, 210001450221 is an apocalyptic number.

It is an amenable number.

10001450221 is a deficient number, since it is larger than the sum of its proper divisors (1662048979).

10001450221 is an frugal number, since it uses more digits than its factorization.

10001450221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29158768 (or 29158754 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 10001450221 its reverse (12205410001), we get a palindrome (22206860222).

The spelling of 10001450221 in words is "ten billion, one million, four hundred fifty thousand, two hundred twenty-one".

Divisors: 1 7 49 343 29158747 204111229 1428778603 10001450221