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10808390 = 252346993
BaseRepresentation
bin101001001110…
…110001000110
3202100010022202
4221032301012
510231332030
61023354502
7160604225
oct51166106
922303282
1010808390
11611255a
123752a32
1323157c8
141614cbc
15e37745
hexa4ec46

10808390 has 16 divisors (see below), whose sum is σ = 20301408. Its totient is φ = 4135296.

The previous prime is 10808389. The next prime is 10808423. The reversal of 10808390 is 9380801.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23267 + ... + 23726.

It is an arithmetic number, because the mean of its divisors is an integer number (1268838).

Almost surely, 210808390 is an apocalyptic number.

10808390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10808390 is a deficient number, since it is larger than the sum of its proper divisors (9493018).

10808390 is a wasteful number, since it uses less digits than its factorization.

10808390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47023.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 10808390 is about 3287.6115950641. The cubic root of 10808390 is about 221.0991140366.

The spelling of 10808390 in words is "ten million, eight hundred eight thousand, three hundred ninety".

Divisors: 1 2 5 10 23 46 115 230 46993 93986 234965 469930 1080839 2161678 5404195 10808390