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2928122868 = 22311175912611
BaseRepresentation
bin1010111010000111…
…1001101111110100
321120001210001110010
42232201321233310
521444044412433
61202315500220
7132363430236
oct25641715764
97501701403
102928122868
111272938060
12698757670
133788394a8
141dac56256
151220e6e63
hexae879bf4

2928122868 has 48 divisors (see below), whose sum is σ = 7458232320. Its totient is φ = 886735200.

The previous prime is 2928122807. The next prime is 2928122921. The reversal of 2928122868 is 8682218292.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225883 + ... + 238493.

It is an arithmetic number, because the mean of its divisors is an integer number (155379840).

Almost surely, 22928122868 is an apocalyptic number.

It is an amenable number.

2928122868 is an abundant number, since it is smaller than the sum of its proper divisors (4530109452).

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

2928122868 is a wasteful number, since it uses less digits than its factorization.

2928122868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14388 (or 14386 counting only the distinct ones).

The product of its digits is 442368, while the sum is 48.

The square root of 2928122868 is about 54112.1323549534. The cubic root of 2928122868 is about 1430.6380297909.

The spelling of 2928122868 in words is "two billion, nine hundred twenty-eight million, one hundred twenty-two thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 1759 3518 5277 7036 10554 12611 19349 21108 25222 37833 38698 50444 58047 75666 77396 116094 138721 151332 232188 277442 416163 554884 832326 1664652 22182749 44365498 66548247 88730996 133096494 244010239 266192988 488020478 732030717 976040956 1464061434 2928122868