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6807090 = 235226903
BaseRepresentation
bin11001111101111000110010
3110210211120110
4121331320302
53220311330
6401522150
7111600513
oct31757062
913724513
106807090
11392a2a4
122343356
131544484
14c92a0a
158e6db0
hex67de32

6807090 has 16 divisors (see below), whose sum is σ = 16337088. Its totient is φ = 1815216.

The previous prime is 6807077. The next prime is 6807091. The reversal of 6807090 is 907086.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 226903 = 6807090 / (6 + 8 + 0 + 7 + 0 + 9 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6807091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113422 + ... + 113481.

It is an arithmetic number, because the mean of its divisors is an integer number (1021068).

Almost surely, 26807090 is an apocalyptic number.

6807090 is an abundant number, since it is smaller than the sum of its proper divisors (9529998).

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

6807090 is a wasteful number, since it uses less digits than its factorization.

6807090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226913.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 6807090 is about 2609.0400533530. The cubic root of 6807090 is about 189.5194689957.

The spelling of 6807090 in words is "six million, eight hundred seven thousand, ninety".

Divisors: 1 2 3 5 6 10 15 30 226903 453806 680709 1134515 1361418 2269030 3403545 6807090