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306390108 = 22325532509
BaseRepresentation
bin10010010000110…
…010010001011100
3210100112020012210
4102100302101130
51111413440413
650223000420
710410162423
oct2220622134
9710466183
10306390108
11147a49472
1286739110
134b62752b
142c9982ba
151bd723c3
hex1243245c

306390108 has 12 divisors (see below), whose sum is σ = 714910280. Its totient is φ = 102130032.

The previous prime is 306390059. The next prime is 306390137. The reversal of 306390108 is 801093603.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 12766243 + ... + 12766266.

Almost surely, 2306390108 is an apocalyptic number.

It is an amenable number.

306390108 is an abundant number, since it is smaller than the sum of its proper divisors (408520172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

306390108 is a wasteful number, since it uses less digits than its factorization.

306390108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25532516 (or 25532514 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 306390108 is about 17504.0026279706. The cubic root of 306390108 is about 674.1526508695.

The spelling of 306390108 in words is "three hundred six million, three hundred ninety thousand, one hundred eight".

Divisors: 1 2 3 4 6 12 25532509 51065018 76597527 102130036 153195054 306390108