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2109702284 = 22769685859
BaseRepresentation
bin111110110111111…
…1000000010001100
312110000202222110122
41331233320002030
513310040433114
6545202124112
7103165113344
oct17557700214
95400688418
102109702284
11992965608
124aa650638
13278107061
14160293d24
15c5331e8e
hex7dbf808c

2109702284 has 12 divisors (see below), whose sum is σ = 3696785400. Its totient is φ = 1053477888.

The previous prime is 2109702271. The next prime is 2109702289. The reversal of 2109702284 is 4822079012.

It is a super-2 number, since 2×21097022842 = 8901687454229633312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2109702289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339854 + ... + 346005.

It is an arithmetic number, because the mean of its divisors is an integer number (308065450).

Almost surely, 22109702284 is an apocalyptic number.

It is an amenable number.

2109702284 is a deficient number, since it is larger than the sum of its proper divisors (1587083116).

2109702284 is a wasteful number, since it uses less digits than its factorization.

2109702284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686632 (or 686630 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 2109702284 is about 45931.4955558819. The cubic root of 2109702284 is about 1282.5482852017.

The spelling of 2109702284 in words is "two billion, one hundred nine million, seven hundred two thousand, two hundred eighty-four".

Divisors: 1 2 4 769 1538 3076 685859 1371718 2743436 527425571 1054851142 2109702284