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4872168 = 2332721381
BaseRepresentation
bin10010100101011111101000
3100011112100200
4102211133220
52221402133
6252232200
756261400
oct22453750
910145320
104872168
112828594
12176b660
131017852
1490b800
15663913
hex4a57e8

4872168 has 72 divisors (see below), whose sum is σ = 15360930. Its totient is φ = 1391040.

The previous prime is 4872163. The next prime is 4872169. The reversal of 4872168 is 8612784.

It can be written as a sum of positive squares in only one way, i.e., 4235364 + 636804 = 2058^2 + 798^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (4872163) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2838 + ... + 4218.

Almost surely, 24872168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4872168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7680465).

4872168 is an abundant number, since it is smaller than the sum of its proper divisors (10488762).

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

4872168 is a wasteful number, since it uses less digits than its factorization.

4872168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407 (or 1393 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 4872168 is about 2207.2988017031. The cubic root of 4872168 is about 169.5277319076.

The spelling of 4872168 in words is "four million, eight hundred seventy-two thousand, one hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 49 56 63 72 84 98 126 147 168 196 252 294 392 441 504 588 882 1176 1381 1764 2762 3528 4143 5524 8286 9667 11048 12429 16572 19334 24858 29001 33144 38668 49716 58002 67669 77336 87003 99432 116004 135338 174006 203007 232008 270676 348012 406014 541352 609021 696024 812028 1218042 1624056 2436084 4872168