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4871980 = 2251912821
BaseRepresentation
bin10010100101011100101100
3100011112002201
4102211130230
52221400410
6252231244
756261011
oct22453454
910145081
104871980
112828433
12176b524
131017739
1490b708
1566383a
hex4a572c

4871980 has 24 divisors (see below), whose sum is σ = 10770480. Its totient is φ = 1846080.

The previous prime is 4871969. The next prime is 4871981. The reversal of 4871980 is 891784.

It is not an unprimeable number, because it can be changed into a prime (4871981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6031 + ... + 6790.

It is an arithmetic number, because the mean of its divisors is an integer number (448770).

Almost surely, 24871980 is an apocalyptic number.

It is an amenable number.

4871980 is an abundant number, since it is smaller than the sum of its proper divisors (5898500).

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

4871980 is a wasteful number, since it uses less digits than its factorization.

4871980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12849 (or 12847 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 4871980 is about 2207.2562153044. The cubic root of 4871980 is about 169.5255513845.

The spelling of 4871980 in words is "four million, eight hundred seventy-one thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 12821 25642 51284 64105 128210 243599 256420 487198 974396 1217995 2435990 4871980