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304416990 = 23255957329
BaseRepresentation
bin10010001001010…
…000100011011110
3210012210222121100
4102021100203132
51110412320430
650112413530
710354334043
oct2211204336
9705728540
10304416990
11146920a99
1285b472a6
134b0b63c7
142c6031ca
151bad2960
hex122508de

304416990 has 48 divisors (see below), whose sum is σ = 804913200. Its totient is φ = 79800576.

The previous prime is 304416971. The next prime is 304416991. The reversal of 304416990 is 99614403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304416991) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23355 + ... + 33974.

It is an arithmetic number, because the mean of its divisors is an integer number (16769025).

Almost surely, 2304416990 is an apocalyptic number.

304416990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

304416990 is an abundant number, since it is smaller than the sum of its proper divisors (500496210).

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

304416990 is a wasteful number, since it uses less digits than its factorization.

304416990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57401 (or 57398 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 304416990 is about 17447.5496846978. The cubic root of 304416990 is about 672.7023773298.

The spelling of 304416990 in words is "three hundred four million, four hundred sixteen thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 59 90 118 177 295 354 531 590 885 1062 1770 2655 5310 57329 114658 171987 286645 343974 515961 573290 859935 1031922 1719870 2579805 3382411 5159610 6764822 10147233 16912055 20294466 30441699 33824110 50736165 60883398 101472330 152208495 304416990