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2808222620101 = 23399011217297
BaseRepresentation
bin101000110111010111000…
…111001001100111000101
3100221110111212021222012221
4220313113013021213011
5332002214442320401
65550025112412341
7406613242265323
oct50672707114705
910843455258187
102808222620101
11992a62505788
123943040a70b1
13174a77bcb012
1499cc0cacd13
154d0ad0e17a1
hex28dd71c99c5

2808222620101 has 8 divisors (see below), whose sum is σ = 2820562242264. Its totient is φ = 2795885452800.

The previous prime is 2808222620023. The next prime is 2808222620107. The reversal of 2808222620101 is 1010262228082.

It can be written as a sum of positive squares in 4 ways, for example, as 609022599201 + 2199200020900 = 780399^2 + 1482970^2 .

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 2808222620101 - 211 = 2808222618053 is a prime.

It is a super-2 number, since 2×28082226201012 (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2808222620107) 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, 1698285 + ... + 2915581.

It is an arithmetic number, because the mean of its divisors is an integer number (352570280283).

Almost surely, 22808222620101 is an apocalyptic number.

It is an amenable number.

2808222620101 is a deficient number, since it is larger than the sum of its proper divisors (12339622163).

2808222620101 is a wasteful number, since it uses less digits than its factorization.

2808222620101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227431.

The product of its (nonzero) digits is 12288, while the sum is 34.

Adding to 2808222620101 its reverse (1010262228082), we get a palindrome (3818484848183).

The spelling of 2808222620101 in words is "two trillion, eight hundred eight billion, two hundred twenty-two million, six hundred twenty thousand, one hundred one".

Divisors: 1 233 9901 1217297 2306933 283630201 12052457597 2808222620101