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2272130 = 25724637
BaseRepresentation
bin1000101010101110000010
311021102202222
420222232002
51040202010
6120411042
725212200
oct10525602
94242688
102272130
1113120a3
12916a82
13617273
14432070
152ed355
hex22ab82

2272130 has 24 divisors (see below), whose sum is σ = 4758588. Its totient is φ = 778848.

The previous prime is 2272129. The next prime is 2272141. The reversal of 2272130 is 312722.

It can be written as a sum of positive squares in 2 ways, for example, as 2181529 + 90601 = 1477^2 + 301^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2272099 and 2272108.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1829 + ... + 2808.

22272130 is an apocalyptic number.

2272130 is an abundant number, since it is smaller than the sum of its proper divisors (2486458).

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

2272130 is a wasteful number, since it uses less digits than its factorization.

2272130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4658 (or 4651 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 2272130 is about 1507.3586169190. The cubic root of 2272130 is about 131.4652763402.

Adding to 2272130 its reverse (312722), we get a palindrome (2584852).

The spelling of 2272130 in words is "two million, two hundred seventy-two thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 4637 9274 23185 32459 46370 64918 162295 227213 324590 454426 1136065 2272130