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2705683820 = 225719326313
BaseRepresentation
bin1010000101000101…
…0111010101101100
320222120012222102212
42201101113111230
521020123340240
61124252105552
7124022635010
oct24121272554
96876188385
102705683820
111169319334
126361652b8
13341726858
141b94b2540
1510c809165
hexa145756c

2705683820 has 24 divisors (see below), whose sum is σ = 6493641504. Its totient is φ = 927662976.

The previous prime is 2705683811. The next prime is 2705683823. The reversal of 2705683820 is 283865072.

It is not an unprimeable number, because it can be changed into a prime (2705683823) 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, 9663017 + ... + 9663296.

It is an arithmetic number, because the mean of its divisors is an integer number (270568396).

Almost surely, 22705683820 is an apocalyptic number.

2705683820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2705683820 is an abundant number, since it is smaller than the sum of its proper divisors (3787957684).

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

2705683820 is a wasteful number, since it uses less digits than its factorization.

2705683820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19326329 (or 19326327 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 2705683820 is about 52016.1880571808. The cubic root of 2705683820 is about 1393.4530747017.

The spelling of 2705683820 in words is "two billion, seven hundred five million, six hundred eighty-three thousand, eight hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 19326313 38652626 77305252 96631565 135284191 193263130 270568382 386526260 541136764 676420955 1352841910 2705683820