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2893881940 = 225433364979
BaseRepresentation
bin1010110001111101…
…0010001001010100
321110200100102201121
42230133102021110
521411313210230
61155053533324
7131466406405
oct25437221124
97420312647
102893881940
111255580374
126891a4244
1337170b0a1
141d64a19ac
1511e0d177a
hexac7d2254

2893881940 has 24 divisors (see below), whose sum is σ = 6218483040. Its totient is φ = 1130632608.

The previous prime is 2893881929. The next prime is 2893881941. The reversal of 2893881940 is 491883982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2893881941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1681630 + ... + 1683349.

It is an arithmetic number, because the mean of its divisors is an integer number (259103460).

Almost surely, 22893881940 is an apocalyptic number.

2893881940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2893881940 is an abundant number, since it is smaller than the sum of its proper divisors (3324601100).

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

2893881940 is a wasteful number, since it uses less digits than its factorization.

2893881940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3365031 (or 3365029 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 52.

The square root of 2893881940 is about 53794.8133187578. The cubic root of 2893881940 is about 1425.0396114976.

The spelling of 2893881940 in words is "two billion, eight hundred ninety-three million, eight hundred eighty-one thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 43 86 172 215 430 860 3364979 6729958 13459916 16824895 33649790 67299580 144694097 289388194 578776388 723470485 1446940970 2893881940