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320245332 = 223116913511
BaseRepresentation
bin10011000101101…
…000111001010100
3211022121011000020
4103011220321110
51123440322312
651435545140
710636016601
oct2305507124
9738534006
10320245332
11154852070
128b2bb1b0
1351468aa4
14307636a8
151d1ac78c
hex13168e54

320245332 has 48 divisors (see below), whose sum is σ = 816582144. Its totient is φ = 96876000.

The previous prime is 320245313. The next prime is 320245339. The reversal of 320245332 is 233542023.

It is a super-3 number, since 3×3202453323 (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320245339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89457 + ... + 92967.

It is an arithmetic number, because the mean of its divisors is an integer number (17012128).

Almost surely, 2320245332 is an apocalyptic number.

It is an amenable number.

320245332 is an abundant number, since it is smaller than the sum of its proper divisors (496336812).

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

320245332 is a wasteful number, since it uses less digits than its factorization.

320245332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4220 (or 4218 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 320245332 is about 17895.3997440683. The cubic root of 320245332 is about 684.1651306109.

Adding to 320245332 its reverse (233542023), we get a palindrome (553787355).

The spelling of 320245332 in words is "three hundred twenty million, two hundred forty-five thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 691 1382 2073 2764 3511 4146 7022 7601 8292 10533 14044 15202 21066 22803 30404 38621 42132 45606 77242 91212 115863 154484 231726 463452 2426101 4852202 7278303 9704404 14556606 26687111 29113212 53374222 80061333 106748444 160122666 320245332