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2888097981 = 33159352369
BaseRepresentation
bin1010110000100100…
…1110000010111101
321110021110120121220
42230021032002331
521403323113411
61154325543553
7131366266506
oct25411160275
97407416556
102888097981
11125228a83a
12687274bb9
13370464522
141d57d7bad
1511d83cb06
hexac24e0bd

2888097981 has 16 divisors (see below), whose sum is σ = 3981795840. Its totient is φ = 1860111360.

The previous prime is 2888097977. The next prime is 2888097991. The reversal of 2888097981 is 1897908882.

It is not a de Polignac number, because 2888097981 - 22 = 2888097977 is a prime.

It is a super-2 number, since 2×28880979812 = 16682219895712552722, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2888097931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28965 + ... + 81333.

It is an arithmetic number, because the mean of its divisors is an integer number (248862240).

Almost surely, 22888097981 is an apocalyptic number.

It is an amenable number.

2888097981 is a deficient number, since it is larger than the sum of its proper divisors (1093697859).

2888097981 is a wasteful number, since it uses less digits than its factorization.

2888097981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52996.

The product of its (nonzero) digits is 4644864, while the sum is 60.

The square root of 2888097981 is about 53741.0269812552. The cubic root of 2888097981 is about 1424.0895764162.

The spelling of 2888097981 in words is "two billion, eight hundred eighty-eight million, ninety-seven thousand, nine hundred eighty-one".

Divisors: 1 3 31 93 593 1779 18383 52369 55149 157107 1623439 4870317 31054817 93164451 962699327 2888097981