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289672764 = 223232936191
BaseRepresentation
bin10001010001000…
…000111000111100
3202012001220022220
4101101000320330
51043124012024
644424405340
710115115003
oct2121007074
9665056286
10289672764
11139570487
1281016850
1348023304
142a685c3a
151a66de79
hex11440e3c

289672764 has 48 divisors (see below), whose sum is σ = 729630720. Its totient is φ = 89172160.

The previous prime is 289672753. The next prime is 289672769. The reversal of 289672764 is 467276982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289672769) 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, 10092 + ... + 26099.

It is an arithmetic number, because the mean of its divisors is an integer number (15200640).

Almost surely, 2289672764 is an apocalyptic number.

It is an amenable number.

289672764 is an abundant number, since it is smaller than the sum of its proper divisors (439957956).

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

289672764 is a wasteful number, since it uses less digits than its factorization.

289672764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36250 (or 36248 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 51.

The square root of 289672764 is about 17019.7756741974. The cubic root of 289672764 is about 661.6615344608.

The spelling of 289672764 in words is "two hundred eighty-nine million, six hundred seventy-two thousand, seven hundred sixty-four".

Divisors: 1 2 3 4 6 12 23 29 46 58 69 87 92 116 138 174 276 348 667 1334 2001 2668 4002 8004 36191 72382 108573 144764 217146 434292 832393 1049539 1664786 2099078 2497179 3148617 3329572 4198156 4994358 6297234 9988716 12594468 24139397 48278794 72418191 96557588 144836382 289672764