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2113260228 = 2232557105389
BaseRepresentation
bin111110111110101…
…1100101011000100
312110021110202001100
41331331130223010
513311443311403
6545410300100
7103240262352
oct17575345304
95407422040
102113260228
11994975762
124ab887630
13278a81651
1416093c7d2
15c57d62a3
hex7df5cac4

2113260228 has 36 divisors (see below), whose sum is σ = 5351493420. Its totient is φ = 703148736.

The previous prime is 2113260223. The next prime is 2113260287. The reversal of 2113260228 is 8220623112.

2113260228 is a `hidden beast` number, since 2 + 1 + 1 + 32 + 602 + 28 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 915546564 + 1197713664 = 30258^2 + 34608^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×21132602282 = 8931737582493223968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2113260223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32643 + ... + 72746.

It is an arithmetic number, because the mean of its divisors is an integer number (148652595).

Almost surely, 22113260228 is an apocalyptic number.

It is an amenable number.

2113260228 is an abundant number, since it is smaller than the sum of its proper divisors (3238233192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2113260228 is a wasteful number, since it uses less digits than its factorization.

2113260228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105956 (or 105951 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 2113260228 is about 45970.2102235785. The cubic root of 2113260228 is about 1283.2688722031.

The spelling of 2113260228 in words is "two billion, one hundred thirteen million, two hundred sixty thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 557 1114 1671 2228 3342 5013 6684 10026 20052 105389 210778 316167 421556 632334 948501 1264668 1897002 3794004 58701673 117403346 176105019 234806692 352210038 528315057 704420076 1056630114 2113260228