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304036434 = 2321310712143
BaseRepresentation
bin10010000111110…
…011101001010010
3210012002122120200
4102013303221102
51110313131214
650100320030
710351160412
oct2207635122
9705078520
10304036434
11146691089
12859a3016
134acb2120
142c544642
151ba59d09
hex121f3a52

304036434 has 48 divisors (see below), whose sum is σ = 716107392. Its totient is φ = 92667744.

The previous prime is 304036427. The next prime is 304036487. The reversal of 304036434 is 434630403.

It is a junction number, because it is equal to n+sod(n) for n = 304036398 and 304036407.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18967 + ... + 31109.

It is an arithmetic number, because the mean of its divisors is an integer number (14918904).

Almost surely, 2304036434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 304036434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (358053696).

304036434 is an abundant number, since it is smaller than the sum of its proper divisors (412070958).

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

304036434 is a wasteful number, since it uses less digits than its factorization.

304036434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12271 (or 12268 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

The square root of 304036434 is about 17436.6405594656. The cubic root of 304036434 is about 672.4219421753.

Adding to 304036434 its reverse (434630403), we get a palindrome (738666837).

The spelling of 304036434 in words is "three hundred four million, thirty-six thousand, four hundred thirty-four".

Divisors: 1 2 3 6 9 13 18 26 39 78 107 117 214 234 321 642 963 1391 1926 2782 4173 8346 12143 12519 24286 25038 36429 72858 109287 157859 218574 315718 473577 947154 1299301 1420731 2598602 2841462 3897903 7795806 11693709 16890913 23387418 33781826 50672739 101345478 152018217 304036434