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30108806 = 2713198707
BaseRepresentation
bin111001011011…
…0110010000110
32002122200111222
41302312302012
530201440211
62553200342
7513630530
oct162666206
962580458
1030108806
1115aa5212
12a1000b2
136312680
143dda850
15299b1db
hex1cb6c86

30108806 has 32 divisors (see below), whose sum is σ = 58517760. Its totient is φ = 11282976.

The previous prime is 30108797. The next prime is 30108829. The reversal of 30108806 is 60880103.

It is a Harshad number since it is a multiple of its sum of digits (26).

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 (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 896 + ... + 7811.

It is an arithmetic number, because the mean of its divisors is an integer number (1828680).

Almost surely, 230108806 is an apocalyptic number.

30108806 is a deficient number, since it is larger than the sum of its proper divisors (28408954).

30108806 is a wasteful number, since it uses less digits than its factorization.

30108806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8748.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 30108806 is about 5487.1491687396. The cubic root of 30108806 is about 311.0984479634.

Adding to 30108806 its reverse (60880103), we get a palindrome (90988909).

The spelling of 30108806 in words is "thirty million, one hundred eight thousand, eight hundred six".

Divisors: 1 2 7 13 14 19 26 38 91 133 182 247 266 494 1729 3458 8707 17414 60949 113191 121898 165433 226382 330866 792337 1158031 1584674 2150629 2316062 4301258 15054403 30108806