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2022211161 = 32281799609
BaseRepresentation
bin111100010001000…
…0111111001011001
312012221010222012200
41320202013321121
513120141224121
6532355000413
7101053340235
oct17042077131
95187128180
102022211161
119485381a3
12485299109
13262c53069
141527db5c5
15bc7eda26
hex78887e59

2022211161 has 12 divisors (see below), whose sum is σ = 2931370260. Its totient is φ = 1343341440.

The previous prime is 2022211157. The next prime is 2022211171. The reversal of 2022211161 is 1611122202.

It can be written as a sum of positive squares in 2 ways, for example, as 1645113600 + 377097561 = 40560^2 + 19419^2 .

It is not a de Polignac number, because 2022211161 - 22 = 2022211157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2022211171) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 397276 + ... + 402333.

It is an arithmetic number, because the mean of its divisors is an integer number (244280855).

Almost surely, 22022211161 is an apocalyptic number.

It is an amenable number.

2022211161 is a deficient number, since it is larger than the sum of its proper divisors (909159099).

2022211161 is a wasteful number, since it uses less digits than its factorization.

2022211161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799896 (or 799893 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 2022211161 is about 44969.0022237541. The cubic root of 2022211161 is about 1264.5679415188.

Adding to 2022211161 its reverse (1611122202), we get a palindrome (3633333363).

The spelling of 2022211161 in words is "two billion, twenty-two million, two hundred eleven thousand, one hundred sixty-one".

Divisors: 1 3 9 281 843 2529 799609 2398827 7196481 224690129 674070387 2022211161