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6380690 = 255871087
BaseRepresentation
bin11000010101110010010010
3110000011122212
4120111302102
53113140230
6344432122
7105143411
oct30256222
913004585
106380690
1136689a8
122178642
131425374
14bc1478
15860895
hex615c92

6380690 has 16 divisors (see below), whose sum is σ = 11515392. Its totient is φ = 2545584.

The previous prime is 6380681. The next prime is 6380741. The reversal of 6380690 is 960836.

It is a happy number.

It is a super-2 number, since 2×63806902 = 81426409752200, which contains 22 as substring.

It is a Curzon number.

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, 5327 + ... + 6413.

It is an arithmetic number, because the mean of its divisors is an integer number (719712).

Almost surely, 26380690 is an apocalyptic number.

6380690 is a deficient number, since it is larger than the sum of its proper divisors (5134702).

6380690 is a wasteful number, since it uses less digits than its factorization.

6380690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 6380690 is about 2526.0027711782. The cubic root of 6380690 is about 185.4766379813.

The spelling of 6380690 in words is "six million, three hundred eighty thousand, six hundred ninety".

Divisors: 1 2 5 10 587 1087 1174 2174 2935 5435 5870 10870 638069 1276138 3190345 6380690