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2231102197 is a prime number
BaseRepresentation
bin1000010011111011…
…1110101011110101
312202111012201211201
42010332332223311
514032130232242
61005220132501
7106201025062
oct20476765365
95674181751
102231102197
11a45443115
12523237131
1329730121c
14172455c69
15d0d124b7
hex84fbeaf5

2231102197 has 2 divisors, whose sum is σ = 2231102198. Its totient is φ = 2231102196.

The previous prime is 2231102191. The next prime is 2231102201. The reversal of 2231102197 is 7912011322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1189491121 + 1041611076 = 34489^2 + 32274^2 .

It is a cyclic number.

It is not a de Polignac number, because 2231102197 - 215 = 2231069429 is a prime.

It is a super-3 number, since 3×22311021973 (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2231102191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115551098 + 1115551099.

It is an arithmetic number, because the mean of its divisors is an integer number (1115551099).

Almost surely, 22231102197 is an apocalyptic number.

It is an amenable number.

2231102197 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231102197 is an equidigital number, since it uses as much as digits as its factorization.

2231102197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 2231102197 is about 47234.5445304599. The cubic root of 2231102197 is about 1306.6917665406.

The spelling of 2231102197 in words is "two billion, two hundred thirty-one million, one hundred two thousand, one hundred ninety-seven".