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10000232221 = 77457191579
BaseRepresentation
bin10010101000000111…
…10110111100011101
3221210221012102200011
421110003312330131
5130440024412341
64332151403221
7502546366660
oct112403667435
927727172604
1010000232221
114271963531
121b31083511
13c34a6c095
146ac1c36d7
153d7e06b81
hex2540f6f1d

10000232221 has 8 divisors (see below), whose sum is σ = 11430429120. Its totient is φ = 8570433408.

The previous prime is 10000232191. The next prime is 10000232227. The reversal of 10000232221 is 12223200001.

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 10000232221 - 25 = 10000232189 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 (10000232227) 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, 43591 + ... + 147988.

It is an arithmetic number, because the mean of its divisors is an integer number (1428803640).

Almost surely, 210000232221 is an apocalyptic number.

It is an amenable number.

10000232221 is a deficient number, since it is larger than the sum of its proper divisors (1430196899).

10000232221 is an equidigital number, since it uses as much as digits as its factorization.

10000232221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199043.

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

Adding to 10000232221 its reverse (12223200001), we get a palindrome (22223432222).

The spelling of 10000232221 in words is "ten billion, two hundred thirty-two thousand, two hundred twenty-one".

Divisors: 1 7 7457 52199 191579 1341053 1428604603 10000232221