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308382930 = 23351142159
BaseRepresentation
bin10010011000011…
…000110011010010
3210111021110212000
4102120120303102
51112421223210
650333414430
710433132412
oct2230306322
9714243760
10308382930
1114908a729
128733a416
134bb7460b
142cd56642
151c117ac0
hex12618cd2

308382930 has 32 divisors (see below), whose sum is σ = 822355200. Its totient is φ = 82235376.

The previous prime is 308382929. The next prime is 308382961. The reversal of 308382930 is 39283803.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 570810 + ... + 571349.

It is an arithmetic number, because the mean of its divisors is an integer number (25698600).

Almost surely, 2308382930 is an apocalyptic number.

308382930 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

308382930 is an abundant number, since it is smaller than the sum of its proper divisors (513972270).

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

308382930 is a wasteful number, since it uses less digits than its factorization.

308382930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142175 (or 1142169 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 308382930 is about 17560.8351168161. The cubic root of 308382930 is about 675.6111009032.

The spelling of 308382930 in words is "three hundred eight million, three hundred eighty-two thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 1142159 2284318 3426477 5710795 6852954 10279431 11421590 17132385 20558862 30838293 34264770 51397155 61676586 102794310 154191465 308382930