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4720500 = 2232531049
BaseRepresentation
bin10010000000011101110100
322212211022100
4102000131310
52202024000
6245102100
755060251
oct22003564
98784270
104720500
112734644
1216b7930
13c937c5
148ac428
15633a00
hex480774

4720500 has 72 divisors (see below), whose sum is σ = 14905800. Its totient is φ = 1257600.

The previous prime is 4720481. The next prime is 4720501. The reversal of 4720500 is 50274.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2916 + 4717584 = 54^2 + 2172^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4720501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3976 + ... + 5024.

It is an arithmetic number, because the mean of its divisors is an integer number (207025).

Almost surely, 24720500 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 4720500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7452900).

4720500 is an abundant number, since it is smaller than the sum of its proper divisors (10185300).

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

4720500 is a wasteful number, since it uses less digits than its factorization.

4720500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074 (or 1059 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 4720500 is about 2172.6711670200. The cubic root of 4720500 is about 167.7500534899.

Adding to 4720500 its reverse (50274), we get a palindrome (4770774).

The spelling of 4720500 in words is "four million, seven hundred twenty thousand, five hundred".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 25 30 36 45 50 60 75 90 100 125 150 180 225 250 300 375 450 500 750 900 1049 1125 1500 2098 2250 3147 4196 4500 5245 6294 9441 10490 12588 15735 18882 20980 26225 31470 37764 47205 52450 62940 78675 94410 104900 131125 157350 188820 236025 262250 314700 393375 472050 524500 786750 944100 1180125 1573500 2360250 4720500