Search a number
-
+
716490 = 232519419
BaseRepresentation
bin10101110111011001010
31100101211200
42232323022
5140411430
623205030
76042615
oct2567312
91311750
10716490
1144a345
122a6776
131c1178
1414917c
15e2460
hexaeeca

716490 has 48 divisors (see below), whose sum is σ = 1965600. Its totient is φ = 180576.

The previous prime is 716483. The next prime is 716491. The reversal of 716490 is 94617.

It is not an unprimeable number, because it can be changed into a prime (716491) by changing a digit.

716490 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1501 + ... + 1919.

It is an arithmetic number, because the mean of its divisors is an integer number (40950).

2716490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 716490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (982800).

716490 is an abundant number, since it is smaller than the sum of its proper divisors (1249110).

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

716490 is a wasteful number, since it uses less digits than its factorization.

716490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451 (or 448 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 716490 is about 846.4573232006. The cubic root of 716490 is about 89.4822119596.

It can be divided in two parts, 71 and 6490, that added together give a 8-th power (6561 = 38).

The spelling of 716490 in words is "seven hundred sixteen thousand, four hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 19 30 38 45 57 90 95 114 171 190 285 342 419 570 838 855 1257 1710 2095 2514 3771 4190 6285 7542 7961 12570 15922 18855 23883 37710 39805 47766 71649 79610 119415 143298 238830 358245 716490