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6890430 = 235229681
BaseRepresentation
bin11010010010001110111110
3110222001220010
4122102032332
53230443210
6403404050
7112365501
oct32221676
913861803
106890430
113986978
122383626
1315733a1
14cb5138
15911920
hex6923be

6890430 has 16 divisors (see below), whose sum is σ = 16537104. Its totient is φ = 1837440.

The previous prime is 6890413. The next prime is 6890437. The reversal of 6890430 is 340986.

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: 229681 = 6890430 / (6 + 8 + 9 + 0 + 4 + 3 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6890437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114811 + ... + 114870.

It is an arithmetic number, because the mean of its divisors is an integer number (1033569).

Almost surely, 26890430 is an apocalyptic number.

6890430 is an abundant number, since it is smaller than the sum of its proper divisors (9646674).

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

6890430 is a wasteful number, since it uses less digits than its factorization.

6890430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229691.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 6890430 is about 2624.9628568801. The cubic root of 6890430 is about 190.2897702180.

The spelling of 6890430 in words is "six million, eight hundred ninety thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 229681 459362 689043 1148405 1378086 2296810 3445215 6890430