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2065720488 = 233136620899
BaseRepresentation
bin111101100100000…
…0110010010101000
312022222000110210020
41323020012102220
513212311023423
6540551320440
7102122222466
oct17310062250
95288013706
102065720488
11970055417
12497980120
1326bc78020
141584c5836
15c15454e3
hex7b2064a8

2065720488 has 32 divisors (see below), whose sum is σ = 5561556000. Its totient is φ = 635606208.

The previous prime is 2065720469. The next prime is 2065720537. The reversal of 2065720488 is 8840275602.

It is a happy number.

It is a super-2 number, since 2×20657204882 = 8534402269085916288, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3310138 + ... + 3310761.

It is an arithmetic number, because the mean of its divisors is an integer number (173798625).

Almost surely, 22065720488 is an apocalyptic number.

It is an amenable number.

2065720488 is an abundant number, since it is smaller than the sum of its proper divisors (3495835512).

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

2065720488 is a wasteful number, since it uses less digits than its factorization.

2065720488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6620921 (or 6620917 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 2065720488 is about 45450.1978873580. The cubic root of 2065720488 is about 1273.5730262173.

The spelling of 2065720488 in words is "two billion, sixty-five million, seven hundred twenty thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 6620899 13241798 19862697 26483596 39725394 52967192 79450788 86071687 158901576 172143374 258215061 344286748 516430122 688573496 1032860244 2065720488