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4978180 = 225248909
BaseRepresentation
bin10010111111011000000100
3100100220210001
4102333120010
52233300210
6254411044
760212434
oct22773004
910326701
104978180
1128a01a9
121800a84
131053b8c
149382c4
1568503a
hex4bf604

4978180 has 12 divisors (see below), whose sum is σ = 10454220. Its totient is φ = 1991264.

The previous prime is 4978163. The next prime is 4978187. The reversal of 4978180 is 818794.

It can be written as a sum of positive squares in 2 ways, for example, as 1473796 + 3504384 = 1214^2 + 1872^2 .

It is a super-2 number, since 2×49781802 = 49564552224800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4978187) 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 3 ways as a sum of consecutive naturals, for example, 124435 + ... + 124474.

It is an arithmetic number, because the mean of its divisors is an integer number (871185).

Almost surely, 24978180 is an apocalyptic number.

It is an amenable number.

4978180 is an abundant number, since it is smaller than the sum of its proper divisors (5476040).

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

4978180 is a wasteful number, since it uses less digits than its factorization.

4978180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248918 (or 248916 counting only the distinct ones).

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

The square root of 4978180 is about 2231.1835424277. The cubic root of 4978180 is about 170.7484874465.

The spelling of 4978180 in words is "four million, nine hundred seventy-eight thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 248909 497818 995636 1244545 2489090 4978180