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10000222321 = 40237248533
BaseRepresentation
bin10010101000000111…
…10100100001110001
3221210221011221002111
421110003310201301
5130440024103241
64332151245321
7502546326055
oct112403644161
927727157074
1010000222321
114271957051
121b31079841
13c34a6771b
146ac1bdc65
153d7e03c81
hex2540f4871

10000222321 has 4 divisors (see below), whose sum is σ = 10000511092. Its totient is φ = 9999933552.

The previous prime is 10000222319. The next prime is 10000222333. The reversal of 10000222321 is 12322200001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12322200001 = 13907886043.

It can be written as a sum of positive squares in 2 ways, for example, as 9108602721 + 891619600 = 95439^2 + 29860^2 .

It is a cyclic number.

It is not a de Polignac number, because 10000222321 - 21 = 10000222319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10000222121) 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, 84030 + ... + 164503.

It is an arithmetic number, because the mean of its divisors is an integer number (2500127773).

Almost surely, 210000222321 is an apocalyptic number.

It is an amenable number.

10000222321 is a deficient number, since it is larger than the sum of its proper divisors (288771).

10000222321 is an equidigital number, since it uses as much as digits as its factorization.

10000222321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288770.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 10000222321 its reverse (12322200001), we get a palindrome (22322422322).

The spelling of 10000222321 in words is "ten billion, two hundred twenty-two thousand, three hundred twenty-one".

Divisors: 1 40237 248533 10000222321