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2230971961 is a prime number
BaseRepresentation
bin1000010011111001…
…1110111000111001
312202110222010012011
42010332132320321
514032112100321
61005213245521
7106166643301
oct20476367071
95673863164
102230971961
11a45364289
125231938a1
13297286b6a
14172420601
15d0cd8ae1
hex84f9ee39

2230971961 has 2 divisors, whose sum is σ = 2230971962. Its totient is φ = 2230971960.

The previous prime is 2230971923. The next prime is 2230972031. The reversal of 2230971961 is 1691790322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1856317225 + 374654736 = 43085^2 + 19356^2 .

It is a cyclic number.

It is not a de Polignac number, because 2230971961 - 27 = 2230971833 is a prime.

It is a super-3 number, since 3×22309719613 (a number of 29 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2230975961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115485980 + 1115485981.

It is an arithmetic number, because the mean of its divisors is an integer number (1115485981).

Almost surely, 22230971961 is an apocalyptic number.

It is an amenable number.

2230971961 is a deficient number, since it is larger than the sum of its proper divisors (1).

2230971961 is an equidigital number, since it uses as much as digits as its factorization.

2230971961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 2230971961 is about 47233.1659006677. The cubic root of 2230971961 is about 1306.6663408981. Note that the first 3 decimals are identical.

The spelling of 2230971961 in words is "two billion, two hundred thirty million, nine hundred seventy-one thousand, nine hundred sixty-one".