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304274272 = 2553179407
BaseRepresentation
bin10010001000101…
…101101101100000
3210012112201211111
4102020231231200
51110343234042
650105353104
710353201001
oct2210555540
9705481744
10304274272
11146833845
1285a98794
134b066463
142c5a71a8
151baa5517
hex1222db60

304274272 has 24 divisors (see below), whose sum is σ = 610346016. Its totient is φ = 149265792.

The previous prime is 304274261. The next prime is 304274339. The reversal of 304274272 is 272472403.

It is a super-2 number, since 2×3042742722 = 185165665202259968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88008 + ... + 91399.

It is an arithmetic number, because the mean of its divisors is an integer number (25431084).

Almost surely, 2304274272 is an apocalyptic number.

304274272 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

304274272 is an abundant number, since it is smaller than the sum of its proper divisors (306071744).

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

304274272 is a wasteful number, since it uses less digits than its factorization.

304274272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179470 (or 179462 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 31.

The square root of 304274272 is about 17443.4592899459. The cubic root of 304274272 is about 672.5972345505.

It can be divided in two parts, 304 and 274272, that added together give a square (274576 = 5242).

The spelling of 304274272 in words is "three hundred four million, two hundred seventy-four thousand, two hundred seventy-two".

Divisors: 1 2 4 8 16 32 53 106 212 424 848 1696 179407 358814 717628 1435256 2870512 5741024 9508571 19017142 38034284 76068568 152137136 304274272