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23222020205 = 55839379537
BaseRepresentation
bin10101101000001000…
…111110100001101101
32012221101022212001102
4111220020332201231
5340024314121310
614400144252445
71451314625546
oct255010764155
965841285042
1023222020205
11993725253a
124601011125
132261086277
1411a41a34cd
1590da688a5
hex56823e86d

23222020205 has 8 divisors (see below), whose sum is σ = 27867251832. Its totient is φ = 18577064448.

The previous prime is 23222020169. The next prime is 23222020207. The reversal of 23222020205 is 50202022232.

It can be written as a sum of positive squares in 4 ways, for example, as 5103244969 + 18118775236 = 71437^2 + 134606^2 .

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 23222020205 - 26 = 23222020141 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 (23222020207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252197 + ... + 331733.

It is an arithmetic number, because the mean of its divisors is an integer number (3483406479).

Almost surely, 223222020205 is an apocalyptic number.

It is an amenable number.

23222020205 is a deficient number, since it is larger than the sum of its proper divisors (4645231627).

23222020205 is an equidigital number, since it uses as much as digits as its factorization.

23222020205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137935.

The product of its (nonzero) digits is 960, while the sum is 20.

Adding to 23222020205 its reverse (50202022232), we get a palindrome (73424042437).

The spelling of 23222020205 in words is "twenty-three billion, two hundred twenty-two million, twenty thousand, two hundred five".

Divisors: 1 5 58393 79537 291965 397685 4644404041 23222020205