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BaseRepresentation
bin1000100000000010…
…1010111101110001
312220000202101021100
42020000222331301
514133130033421
61014232315013
7110355431451
oct21000527561
95800671240
102281877361
11a71073265
12538242a69
132a499b3ba
141790b1d61
15d54e1c26
hex8802af71

2281877361 has 9 divisors (see below), whose sum is σ = 3296252089. Its totient is φ = 1521156036.

The previous prime is 2281877293. The next prime is 2281877387. The reversal of 2281877361 is 1637781822.

The square root of 2281877361 is 47769.

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

2281877361 is a `hidden beast` number, since 2 + 281 + 8 + 7 + 7 + 361 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 2281877361 - 225 = 2248322929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2281877161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 135346 + ... + 151268.

Almost surely, 22281877361 is an apocalyptic number.

2281877361 is the 47769-th square number.

2281877361 is the 23885-th centered octagonal number.

It is an amenable number.

2281877361 is a deficient number, since it is larger than the sum of its proper divisors (1014374728).

2281877361 is an frugal number, since it uses more digits than its factorization.

2281877361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31852 (or 15926 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The cubic root of 2281877361 is about 1316.5300201582.

The spelling of 2281877361 in words is "two billion, two hundred eighty-one million, eight hundred seventy-seven thousand, three hundred sixty-one".