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304020430 = 25719122739
BaseRepresentation
bin10010000111101…
…111101111001110
3210012001211121221
4102013233233032
51110312123210
650100113554
710351062640
oct2207575716
9705054557
10304020430
1114668005a
12859958ba
134aca7a5c
142c53c890
151ba551da
hex121efbce

304020430 has 32 divisors (see below), whose sum is σ = 628715520. Its totient is φ = 103685280.

The previous prime is 304020397. The next prime is 304020481. The reversal of 304020430 is 34020403.

It is a congruent number.

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, 2001 + ... + 24739.

It is an arithmetic number, because the mean of its divisors is an integer number (19647360).

Almost surely, 2304020430 is an apocalyptic number.

304020430 is an abundant number, since it is smaller than the sum of its proper divisors (324695090).

304020430 is a wasteful number, since it uses less digits than its factorization.

304020430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22944.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 304020430 is about 17436.1816347502. The cubic root of 304020430 is about 672.4101435569.

Adding to 304020430 its reverse (34020403), we get a palindrome (338040833).

The spelling of 304020430 in words is "three hundred four million, twenty thousand, four hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 191 382 955 1337 1910 2674 6685 13370 22739 45478 113695 159173 227390 318346 795865 1591730 4343149 8686298 21715745 30402043 43431490 60804086 152010215 304020430