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2230857 = 32247873
BaseRepresentation
bin1000100000101001001001
311012100011100
420200221021
51032341412
6115452013
724650646
oct10405111
94170140
102230857
111294092
128b7009
13601545
14420dcd
152e0edc
hex220a49

2230857 has 6 divisors (see below), whose sum is σ = 3222362. Its totient is φ = 1487232.

The previous prime is 2230829. The next prime is 2230861. The reversal of 2230857 is 7580322.

It can be written as a sum of positive squares in only one way, i.e., 1565001 + 665856 = 1251^2 + 816^2 .

It is not a de Polignac number, because 2230857 - 210 = 2229833 is a prime.

It is a super-3 number, since 3×22308573 = 33307071719979698379, which contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2230857.

It is not an unprimeable number, because it can be changed into a prime (2230867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123928 + ... + 123945.

22230857 is an apocalyptic number.

It is an amenable number.

2230857 is a deficient number, since it is larger than the sum of its proper divisors (991505).

2230857 is a wasteful number, since it uses less digits than its factorization.

2230857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247879 (or 247876 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 2230857 is about 1493.6053695672. The cubic root of 2230857 is about 130.6643896533.

The spelling of 2230857 in words is "two million, two hundred thirty thousand, eight hundred fifty-seven".

Divisors: 1 3 9 247873 743619 2230857