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2245168660 = 225767239357
BaseRepresentation
bin1000010111010010…
…1000111000010100
312210110200101101211
42011310220320110
514044230344120
61010441431204
7106431422140
oct20564507024
95713611354
102245168660
11a52380499
12527a9b504
1329a1b7987
14174278220
15d219025a
hex85d28e14

2245168660 has 48 divisors (see below), whose sum is σ = 5468851584. Its totient is φ = 758279808.

The previous prime is 2245168643. The next prime is 2245168663. The reversal of 2245168660 is 668615422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2245168663) 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 15 ways as a sum of consecutive naturals, for example, 110299 + ... + 129058.

It is an arithmetic number, because the mean of its divisors is an integer number (113934408).

Almost surely, 22245168660 is an apocalyptic number.

2245168660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2245168660 is an abundant number, since it is smaller than the sum of its proper divisors (3223682924).

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

2245168660 is a wasteful number, since it uses less digits than its factorization.

2245168660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239440 (or 239438 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 2245168660 is about 47383.2107396702. The cubic root of 2245168660 is about 1309.4321218295.

The spelling of 2245168660 in words is "two billion, two hundred forty-five million, one hundred sixty-eight thousand, six hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 67 70 134 140 268 335 469 670 938 1340 1876 2345 4690 9380 239357 478714 957428 1196785 1675499 2393570 3350998 4787140 6701996 8377495 16036919 16754990 32073838 33509980 64147676 80184595 112258433 160369190 224516866 320738380 449033732 561292165 1122584330 2245168660