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320013032 = 231710721991
BaseRepresentation
bin10011000100110…
…000001011101000
3211022011100100112
4103010300023220
51123410404112
651430553452
710634031413
oct2304601350
9738140315
10320013032
11154703589
128b208888
13513b7131
1430702b7a
151d163a22
hex131302e8

320013032 has 32 divisors (see below), whose sum is σ = 641286720. Its totient is φ = 149180160.

The previous prime is 320013019. The next prime is 320013061. The reversal of 320013032 is 230310023.

It is a junction number, because it is equal to n+sod(n) for n = 320012998 and 320013016.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3557 + ... + 25547.

It is an arithmetic number, because the mean of its divisors is an integer number (20040210).

Almost surely, 2320013032 is an apocalyptic number.

It is an amenable number.

320013032 is an abundant number, since it is smaller than the sum of its proper divisors (321273688).

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

320013032 is a wasteful number, since it uses less digits than its factorization.

320013032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22121 (or 22117 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 320013032 is about 17888.9080717634. The cubic root of 320013032 is about 683.9996637140. Note that the first 3 decimals are identical.

Adding to 320013032 its reverse (230310023), we get a palindrome (550323055).

The spelling of 320013032 in words is "three hundred twenty million, thirteen thousand, thirty-two".

Divisors: 1 2 4 8 17 34 68 107 136 214 428 856 1819 3638 7276 14552 21991 43982 87964 175928 373847 747694 1495388 2353037 2990776 4706074 9412148 18824296 40001629 80003258 160006516 320013032