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289060331320 = 23522937315059
BaseRepresentation
bin1000011010011010101…
…01101001111100111000
31000122010010000021112001
410031031111221330320
514213443421100240
6340443102030344
726612120163505
oct4151525517470
91018103007461
10289060331320
11101654026302
12480318783b4
1321348568c87
14ddc22984ac
1577bc08a89a
hex434d569f38

289060331320 has 32 divisors (see below), whose sum is σ = 650416165200. Its totient is φ = 115618724608.

The previous prime is 289060331309. The next prime is 289060331363. The reversal of 289060331320 is 23133060982.

It is a self number, because there is not a number n which added to its sum of digits gives 289060331320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 759951 + ... + 1075009.

Almost surely, 2289060331320 is an apocalyptic number.

289060331320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

289060331320 is an abundant number, since it is smaller than the sum of its proper divisors (361355833880).

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

289060331320 is a wasteful number, since it uses less digits than its factorization.

289060331320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338007 (or 338003 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 37.

The spelling of 289060331320 in words is "two hundred eighty-nine billion, sixty million, three hundred thirty-one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 22937 45874 91748 114685 183496 229370 315059 458740 630118 917480 1260236 1575295 2520472 3150590 6301180 12602360 7226508283 14453016566 28906033132 36132541415 57812066264 72265082830 144530165660 289060331320