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6890923 = 132232377
BaseRepresentation
bin11010010010010110101011
3110222002120101
4122102112223
53231002143
6403410231
7112400104
oct32222653
913862511
106890923
113987286
122383977
131573690
14cb53ab
15911b4d
hex6925ab

6890923 has 8 divisors (see below), whose sum is σ = 7457408. Its totient is φ = 6329664.

The previous prime is 6890861. The next prime is 6890957. The reversal of 6890923 is 3290986.

6890923 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6890923 - 221 = 4793771 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 6 + 87 + 94 + 0 + 97 + 211 + 37 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6890123) 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, 1711 + ... + 4087.

It is an arithmetic number, because the mean of its divisors is an integer number (932176).

Almost surely, 26890923 is an apocalyptic number.

6890923 is a deficient number, since it is larger than the sum of its proper divisors (566485).

6890923 is a wasteful number, since it uses less digits than its factorization.

6890923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2613.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 6890923 is about 2625.0567612911. The cubic root of 6890923 is about 190.2943084262.

The spelling of 6890923 in words is "six million, eight hundred ninety thousand, nine hundred twenty-three".

Divisors: 1 13 223 2377 2899 30901 530071 6890923