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2028047697 = 321347368803
BaseRepresentation
bin111100011100001…
…1000110101010001
312020100010111102200
41320320120311101
513123140011242
6533124033413
7101154056334
oct17070306521
95210114380
102028047697
11950864285
12487232869
13264217830
141534ba61b
15bd0a304c
hex78e18d51

2028047697 has 24 divisors (see below), whose sum is σ = 3221871744. Its totient is φ = 1221472224.

The previous prime is 2028047653. The next prime is 2028047699. The reversal of 2028047697 is 7967408202.

It is not a de Polignac number, because 2028047697 - 215 = 2028014929 is a prime.

It is a super-2 number, since 2×20280476972 = 8225954922614007618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2028047699) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 178903 + ... + 189900.

It is an arithmetic number, because the mean of its divisors is an integer number (134244656).

Almost surely, 22028047697 is an apocalyptic number.

It is an amenable number.

2028047697 is a deficient number, since it is larger than the sum of its proper divisors (1193824047).

2028047697 is a wasteful number, since it uses less digits than its factorization.

2028047697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368869 (or 368866 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 2028047697 is about 45033.8505682115. The cubic root of 2028047697 is about 1265.7833778792.

The spelling of 2028047697 in words is "two billion, twenty-eight million, forty-seven thousand, six hundred ninety-seven".

Divisors: 1 3 9 13 39 47 117 141 423 611 1833 5499 368803 1106409 3319227 4794439 14383317 17333741 43149951 52001223 156003669 225338633 676015899 2028047697