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4872780 = 223251123107
BaseRepresentation
bin10010100101101001001100
3100011120012100
4102211221030
52221412110
6252235100
756263233
oct22455114
910146170
104872780
112828aa0
12176ba90
131017c03
1490bb1a
15663bc0
hex4a5a4c

4872780 has 144 divisors (see below), whose sum is σ = 16982784. Its totient is φ = 1119360.

The previous prime is 4872743. The next prime is 4872781. The reversal of 4872780 is 872784.

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

It is not an unprimeable number, because it can be changed into a prime (4872781) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45487 + ... + 45593.

It is an arithmetic number, because the mean of its divisors is an integer number (117936).

Almost surely, 24872780 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 4872780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8491392).

4872780 is an abundant number, since it is smaller than the sum of its proper divisors (12110004).

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

4872780 is a wasteful number, since it uses less digits than its factorization.

4872780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 4872780 is about 2207.4374283318. The cubic root of 4872780 is about 169.5348298174.

The spelling of 4872780 in words is "four million, eight hundred seventy-two thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 11 12 15 18 20 22 23 30 33 36 44 45 46 55 60 66 69 90 92 99 107 110 115 132 138 165 180 198 207 214 220 230 253 276 321 330 345 396 414 428 460 495 506 535 642 660 690 759 828 963 990 1012 1035 1070 1177 1265 1284 1380 1518 1605 1926 1980 2070 2140 2277 2354 2461 2530 3036 3210 3531 3795 3852 4140 4554 4708 4815 4922 5060 5885 6420 7062 7383 7590 9108 9630 9844 10593 11385 11770 12305 14124 14766 15180 17655 19260 21186 22149 22770 23540 24610 27071 29532 35310 36915 42372 44298 45540 49220 52965 54142 70620 73830 81213 88596 105930 108284 110745 135355 147660 162426 211860 221490 243639 270710 324852 406065 442980 487278 541420 812130 974556 1218195 1624260 2436390 4872780