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303040120 = 235193731069
BaseRepresentation
bin10010000100000…
…000011001111000
3210010020000220011
4102010000121320
51110034240440
650023111304
710336540615
oct2204003170
9703200804
10303040120
11146070589
12855a2534
134aa237a6
142c36550c
151b90e9ea
hex12100678

303040120 has 64 divisors (see below), whose sum is σ = 720324000. Its totient is φ = 114421248.

The previous prime is 303040117. The next prime is 303040163. The reversal of 303040120 is 21040303.

It is a super-3 number, since 3×3030401203 (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 303040120.

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, 282946 + ... + 284014.

Almost surely, 2303040120 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 303040120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (360162000).

303040120 is an abundant number, since it is smaller than the sum of its proper divisors (417283880).

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

303040120 is a wasteful number, since it uses less digits than its factorization.

303040120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472 (or 1468 counting only the distinct ones).

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

The square root of 303040120 is about 17408.0475642733. The cubic root of 303040120 is about 671.6866393775.

Adding to 303040120 its reverse (21040303), we get a palindrome (324080423).

The spelling of 303040120 in words is "three hundred three million, forty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 19 20 38 40 76 95 152 190 373 380 746 760 1069 1492 1865 2138 2984 3730 4276 5345 7087 7460 8552 10690 14174 14920 20311 21380 28348 35435 40622 42760 56696 70870 81244 101555 141740 162488 203110 283480 398737 406220 797474 812440 1594948 1993685 3189896 3987370 7576003 7974740 15152006 15949480 30304012 37880015 60608024 75760030 151520060 303040120