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2802540940 = 225140127047
BaseRepresentation
bin1010011100001011…
…0110000110001100
321020022110211102121
42213002312012030
521214422302230
61142032102324
7126310130203
oct24702660614
97208424377
102802540940
111208a63541
126626949a4
13358809964
141c82c623a
1511608c77a
hexa70b618c

2802540940 has 12 divisors (see below), whose sum is σ = 5885336016. Its totient is φ = 1121016368.

The previous prime is 2802540931. The next prime is 2802540941. The reversal of 2802540940 is 490452082.

It is a junction number, because it is equal to n+sod(n) for n = 2802540896 and 2802540905.

It is not an unprimeable number, because it can be changed into a prime (2802540941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70063504 + ... + 70063543.

It is an arithmetic number, because the mean of its divisors is an integer number (490444668).

Almost surely, 22802540940 is an apocalyptic number.

2802540940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2802540940 is an abundant number, since it is smaller than the sum of its proper divisors (3082795076).

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

2802540940 is a wasteful number, since it uses less digits than its factorization.

2802540940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140127056 (or 140127054 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 2802540940 is about 52939.0304029078. The cubic root of 2802540940 is about 1409.8859690154.

The spelling of 2802540940 in words is "two billion, eight hundred two million, five hundred forty thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 140127047 280254094 560508188 700635235 1401270470 2802540940