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10390838 = 25195419
BaseRepresentation
bin100111101000…
…110100110110
3201112220112212
4213220310312
510130001323
61010413422
7154214663
oct47506466
921486485
1010390838
115957877
123591272
1321ca733
141546a6a
15da3b78
hex9e8d36

10390838 has 4 divisors (see below), whose sum is σ = 15586260. Its totient is φ = 5195418.

The previous prime is 10390823. The next prime is 10390841. The reversal of 10390838 is 83809301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83809301 = 330725343.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2597708 + ... + 2597711.

It is an arithmetic number, because the mean of its divisors is an integer number (3896565).

Almost surely, 210390838 is an apocalyptic number.

10390838 is a deficient number, since it is larger than the sum of its proper divisors (5195422).

10390838 is an equidigital number, since it uses as much as digits as its factorization.

10390838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5195421.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 10390838 is about 3223.4822785305. The cubic root of 10390838 is about 218.2144594367.

The spelling of 10390838 in words is "ten million, three hundred ninety thousand, eight hundred thirty-eight".

Divisors: 1 2 5195419 10390838