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6680500 = 225331431
BaseRepresentation
bin11001011110111110110100
3110120101220221
4121132332310
53202234000
6355104124
7110532451
oct31367664
913511827
106680500
113853182
1222a2044
1314cb978
14c5c828
158be61a
hex65efb4

6680500 has 48 divisors (see below), whose sum is σ = 15095808. Its totient is φ = 2580000.

The previous prime is 6680497. The next prime is 6680519. The reversal of 6680500 is 50866.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15285 + ... + 15715.

It is an arithmetic number, because the mean of its divisors is an integer number (314496).

Almost surely, 26680500 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 6680500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7547904).

6680500 is an abundant number, since it is smaller than the sum of its proper divisors (8415308).

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

6680500 is a wasteful number, since it uses less digits than its factorization.

6680500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481 (or 469 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 6680500 is about 2584.6663227581. Note that the first 3 decimals coincide. The cubic root of 6680500 is about 188.3372924917.

The spelling of 6680500 in words is "six million, six hundred eighty thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 31 50 62 100 124 125 155 250 310 431 500 620 775 862 1550 1724 2155 3100 3875 4310 7750 8620 10775 13361 15500 21550 26722 43100 53444 53875 66805 107750 133610 215500 267220 334025 668050 1336100 1670125 3340250 6680500