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5180720 = 245312089
BaseRepresentation
bin10011110000110100110000
3100202012121112
4103300310300
52311240340
6303012452
762015066
oct23606460
910665545
105180720
112a19396
12189a128
1310c511c
1498c036
156c5065
hex4f0d30

5180720 has 40 divisors (see below), whose sum is σ = 12439680. Its totient is φ = 2004480.

The previous prime is 5180717. The next prime is 5180743. The reversal of 5180720 is 270815.

5180720 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1436 + ... + 3524.

It is an arithmetic number, because the mean of its divisors is an integer number (310992).

Almost surely, 25180720 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 5180720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6219840).

5180720 is an abundant number, since it is smaller than the sum of its proper divisors (7258960).

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

5180720 is a wasteful number, since it uses less digits than its factorization.

5180720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133 (or 2127 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 5180720 is about 2276.1195047712. The cubic root of 5180720 is about 173.0334393578.

The spelling of 5180720 in words is "five million, one hundred eighty thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 31 40 62 80 124 155 248 310 496 620 1240 2089 2480 4178 8356 10445 16712 20890 33424 41780 64759 83560 129518 167120 259036 323795 518072 647590 1036144 1295180 2590360 5180720