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289815040482 = 2311231158716477
BaseRepresentation
bin1000011011110100101…
…00101001000111100010
31000201001201010110212020
410031322110221013202
514222020122243412
6341050022042310
726636613124662
oct4157224510742
91021051113766
10289815040482
11101a01042490
1248202579396
1321438a22046
14100545d41a2
15781346818c
hex437a5291e2

289815040482 has 64 divisors (see below), whose sum is σ = 659913053184. Its totient is φ = 83992011840.

The previous prime is 289815040481. The next prime is 289815040499. The reversal of 289815040482 is 284040518982.

It is not an unprimeable number, because it can be changed into a prime (289815040481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17580828 + ... + 17597304.

It is an arithmetic number, because the mean of its divisors is an integer number (10311141456).

Almost surely, 2289815040482 is an apocalyptic number.

289815040482 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

289815040482 is an abundant number, since it is smaller than the sum of its proper divisors (370098012702).

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

289815040482 is a wasteful number, since it uses less digits than its factorization.

289815040482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28103.

The product of its (nonzero) digits is 1474560, while the sum is 51.

The spelling of 289815040482 in words is "two hundred eighty-nine billion, eight hundred fifteen million, forty thousand, four hundred eighty-two".

Divisors: 1 2 3 6 11 22 23 33 46 66 69 138 253 506 759 1518 11587 16477 23174 32954 34761 49431 69522 98862 127457 181247 254914 266501 362494 378971 382371 533002 543741 757942 764742 799503 1087482 1136913 1599006 2273826 2931511 4168681 5863022 8337362 8794533 12506043 17589066 25012086 190918999 381837998 572756997 1145513994 2100108989 4200217978 4391136977 6300326967 8782273954 12600653934 13173410931 26346821862 48302506747 96605013494 144907520241 289815040482