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1231024320330 = 235710754785239
BaseRepresentation
bin10001111010011110110…
…001000110111101001010
311100200111012102212200120
4101322132301012331022
5130132114211222310
62341305203244110
7154636634034360
oct21723661067512
94320435385616
101231024320330
11435090155152
1217a6b7679636
138c114c539bc
1443820a11630
152204d6ebb70
hex11e9ec46f4a

1231024320330 has 64 divisors (see below), whose sum is σ = 3408080209920. Its totient is φ = 278747290944.

The previous prime is 1231024320299. The next prime is 1231024320353. The reversal of 1231024320330 is 330234201321.

It is a self number, because there is not a number n which added to its sum of digits gives 1231024320330.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27370150 + ... + 27415089.

It is an arithmetic number, because the mean of its divisors is an integer number (53251253280).

Almost surely, 21231024320330 is an apocalyptic number.

1231024320330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231024320330 is an abundant number, since it is smaller than the sum of its proper divisors (2177055889590).

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

1231024320330 is a wasteful number, since it uses less digits than its factorization.

1231024320330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54785363.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 1231024320330 its reverse (330234201321), we get a palindrome (1561258521651).

The spelling of 1231024320330 in words is "one trillion, two hundred thirty-one billion, twenty-four million, three hundred twenty thousand, three hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 107 210 214 321 535 642 749 1070 1498 1605 2247 3210 3745 4494 7490 11235 22470 54785239 109570478 164355717 273926195 328711434 383496673 547852390 766993346 821778585 1150490019 1643557170 1917483365 2300980038 3834966730 5752450095 5862020573 11504900190 11724041146 17586061719 29310102865 35172123438 41034144011 58620205730 82068288022 87930308595 123102432033 175860617190 205170720055 246204864066 410341440110 615512160165 1231024320330