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1082222009401 = 13243218612
BaseRepresentation
bin11111011111110010111…
…01010101110000111001
310211110101220122021100111
433233321131111300321
5120212342313300101
62145055501304321
7141121320205111
oct17577135256071
93743356567314
101082222009401
11387a71124585
121558a9b650a1
137b08c869c00
143a54634c041
151d23ed4d251
hexfbf9755c39

1082222009401 has 27 divisors (see below), whose sum is σ = 1200405229677. Its totient is φ = 975217894560.

The previous prime is 1082222009377. The next prime is 1082222009459. The reversal of 1082222009401 is 1049002222801.

The square root of 1082222009401 is 1040299.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 896136756025 + 186085253376 = 946645^2 + 431376^2 .

It is not a de Polignac number, because 1082222009401 - 213 = 1082222001209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1082222009801) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 581526211 + ... + 581528071.

It is an arithmetic number, because the mean of its divisors is an integer number (44459452951).

Almost surely, 21082222009401 is an apocalyptic number.

1082222009401 is the 1040299-th square number.

1082222009401 is the 520150-th centered octagonal number.

It is an amenable number.

1082222009401 is a deficient number, since it is larger than the sum of its proper divisors (118183220276).

1082222009401 is an frugal number, since it uses more digits than its factorization.

1082222009401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3834 (or 1917 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The spelling of 1082222009401 in words is "one trillion, eighty-two billion, two hundred twenty-two million, nine thousand, four hundred one".

Divisors: 1 13 43 169 559 1849 1861 7267 24037 24193 80023 312481 314509 1040299 3440989 3463321 13523887 44732857 45023173 148922803 581527141 585301249 1935996439 6403680529 25167953707 83247846877 1082222009401