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6485380 = 2251141719
BaseRepresentation
bin11000101111010110000100
3110012111021021
4120233112010
53130013010
6351000524
7106060546
oct30572604
913174237
106485380
11372a620
122209144
131460c05
14c0b696
158818da
hex62f584

6485380 has 48 divisors (see below), whose sum is σ = 15240960. Its totient is φ = 2297600.

The previous prime is 6485329. The next prime is 6485387. The reversal of 6485380 is 835846.

It is not an unprimeable number, because it can be changed into a prime (6485387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8661 + ... + 9379.

It is an arithmetic number, because the mean of its divisors is an integer number (317520).

Almost surely, 26485380 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 6485380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7620480).

6485380 is an abundant number, since it is smaller than the sum of its proper divisors (8755580).

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

6485380 is a wasteful number, since it uses less digits than its factorization.

6485380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780 (or 778 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 6485380 is about 2546.6409248263. The cubic root of 6485380 is about 186.4855314888.

The spelling of 6485380 in words is "six million, four hundred eighty-five thousand, three hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 41 44 55 82 110 164 205 220 410 451 719 820 902 1438 1804 2255 2876 3595 4510 7190 7909 9020 14380 15818 29479 31636 39545 58958 79090 117916 147395 158180 294790 324269 589580 648538 1297076 1621345 3242690 6485380