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10689423 = 33563141
BaseRepresentation
bin101000110001…
…101110001111
3202010002010120
4220301232033
510214030143
61021040023
7156600333
oct50615617
922102116
1010689423
116041138
1236b6013
1322a3604
1415c37c3
15e12383
hexa31b8f

10689423 has 4 divisors (see below), whose sum is σ = 14252568. Its totient is φ = 7126280.

The previous prime is 10689421. The next prime is 10689431. The reversal of 10689423 is 32498601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32498601 = 310832867.

It is a cyclic number.

It is not a de Polignac number, because 10689423 - 21 = 10689421 is a prime.

It is a super-2 number, since 2×106894232 = 228527528145858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10689421) 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 3 ways as a sum of consecutive naturals, for example, 1781568 + ... + 1781573.

It is an arithmetic number, because the mean of its divisors is an integer number (3563142).

Almost surely, 210689423 is an apocalyptic number.

10689423 is a deficient number, since it is larger than the sum of its proper divisors (3563145).

10689423 is an equidigital number, since it uses as much as digits as its factorization.

10689423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3563144.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 10689423 is about 3269.4683053977. The cubic root of 10689423 is about 220.2849132301.

The spelling of 10689423 in words is "ten million, six hundred eighty-nine thousand, four hundred twenty-three".

Divisors: 1 3 3563141 10689423