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312430000 = 2454157199
BaseRepresentation
bin10010100111110…
…100110110110000
3210202220002101111
4102213310312300
51114440230000
651000243104
710512416431
oct2247646660
9722802344
10312430000
111503a4313
1288770494
134c96072c
142d6cb488
151c666cba
hex129f4db0

312430000 has 100 divisors (see below), whose sum is σ = 765067600. Its totient is φ = 123552000.

The previous prime is 312429989. The next prime is 312430037. The reversal of 312430000 is 34213.

312430000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (100).

It is a super-2 number, since 2×3124300002 = 195225009800000000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1569901 + ... + 1570099.

It is an arithmetic number, because the mean of its divisors is an integer number (7650676).

Almost surely, 2312430000 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 312430000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (382533800).

312430000 is an abundant number, since it is smaller than the sum of its proper divisors (452637600).

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

312430000 is a wasteful number, since it uses less digits than its factorization.

312430000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 312430000 is about 17675.6895197896. The cubic root of 312430000 is about 678.5537312361.

Adding to 312430000 its reverse (34213), we get a palindrome (312464213).

It can be divided in two parts, 3124 and 30000, that added together give a square (33124 = 1822).

The spelling of 312430000 in words is "three hundred twelve million, four hundred thirty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 157 199 200 250 314 398 400 500 625 628 785 796 995 1000 1250 1256 1570 1592 1990 2000 2500 2512 3140 3184 3925 3980 4975 5000 6280 7850 7960 9950 10000 12560 15700 15920 19625 19900 24875 31243 31400 39250 39800 49750 62486 62800 78500 79600 98125 99500 124375 124972 156215 157000 196250 199000 248750 249944 312430 314000 392500 398000 497500 499888 624860 781075 785000 995000 1249720 1562150 1570000 1990000 2499440 3124300 3905375 6248600 7810750 12497200 15621500 19526875 31243000 39053750 62486000 78107500 156215000 312430000