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2280310021 = 11207300911
BaseRepresentation
bin1000011111101010…
…1100010100000101
312212220210202021201
42013322230110011
514132224410041
61014134542501
7110336213113
oct20772542405
95786722251
102280310021
11a701a2740
12537807a31
132a456cb92
14178bc4ab3
15d52d2631
hex87eac505

2280310021 has 4 divisors (see below), whose sum is σ = 2487610944. Its totient is φ = 2073009100.

The previous prime is 2280310003. The next prime is 2280310031. The reversal of 2280310021 is 1200130822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2280310021 - 219 = 2279785733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2280310031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103650445 + ... + 103650466.

It is an arithmetic number, because the mean of its divisors is an integer number (621902736).

Almost surely, 22280310021 is an apocalyptic number.

It is an amenable number.

2280310021 is a deficient number, since it is larger than the sum of its proper divisors (207300923).

2280310021 is a wasteful number, since it uses less digits than its factorization.

2280310021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207300922.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 2280310021 is about 47752.5917725939. The cubic root of 2280310021 is about 1316.2285253140.

Adding to 2280310021 its reverse (1200130822), we get a palindrome (3480440843).

The spelling of 2280310021 in words is "two billion, two hundred eighty million, three hundred ten thousand, twenty-one".

Divisors: 1 11 207300911 2280310021