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302030320 = 245139157173
BaseRepresentation
bin10010000000001…
…001110111110000
3210001022201201011
4102000021313300
51104304432240
645545320304
710325133604
oct2200116760
9701281634
10302030320
11145540939
1285196094
134a75bc87
142c181504
151b7b06ea
hex12009df0

302030320 has 80 divisors (see below), whose sum is σ = 715891680. Its totient is φ = 118490112.

The previous prime is 302030317. The next prime is 302030329. The reversal of 302030320 is 23030203.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 302030320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302030329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1745754 + ... + 1745926.

It is an arithmetic number, because the mean of its divisors is an integer number (8948646).

Almost surely, 2302030320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 302030320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357945840).

302030320 is an abundant number, since it is smaller than the sum of its proper divisors (413861360).

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

302030320 is a wasteful number, since it uses less digits than its factorization.

302030320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 13.

The square root of 302030320 is about 17379.0195350601. The cubic root of 302030320 is about 670.9397372295.

Adding to 302030320 its reverse (23030203), we get a palindrome (325060523).

The spelling of 302030320 in words is "three hundred two million, thirty thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 139 157 173 278 314 346 556 628 692 695 785 865 1112 1256 1384 1390 1570 1730 2224 2512 2768 2780 3140 3460 5560 6280 6920 11120 12560 13840 21823 24047 27161 43646 48094 54322 87292 96188 108644 109115 120235 135805 174584 192376 217288 218230 240470 271610 349168 384752 434576 436460 480940 543220 872920 961880 1086440 1745840 1923760 2172880 3775379 7550758 15101516 18876895 30203032 37753790 60406064 75507580 151015160 302030320