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20315432646330 = 2357925639334331
BaseRepresentation
bin1001001111010000011100…
…01001010111011010111010
32122221010200102122012021120
410213220032021113122322
510130322001224140310
6111112440402250110
74164512234205243
oct447501611273272
978833612565246
1020315432646330
1165227aa1199a8
122341325356936
13b44977490623
145033b4c45cca
152536b731ab70
hex127a0e2576ba

20315432646330 has 64 divisors (see below), whose sum is σ = 49376289484800. Its totient is φ = 5348648784960.

The previous prime is 20315432646319. The next prime is 20315432646337. The reversal of 20315432646330 is 3364623451302.

It is not an unprimeable number, because it can be changed into a prime (20315432646337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60597265 + ... + 60931595.

It is an arithmetic number, because the mean of its divisors is an integer number (771504523200).

Almost surely, 220315432646330 is an apocalyptic number.

20315432646330 is an abundant number, since it is smaller than the sum of its proper divisors (29060856838470).

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

20315432646330 is a wasteful number, since it uses less digits than its factorization.

20315432646330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360059.

The product of its (nonzero) digits is 933120, while the sum is 42.

The spelling of 20315432646330 in words is "twenty trillion, three hundred fifteen billion, four hundred thirty-two million, six hundred forty-six thousand, three hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 79 158 237 395 474 790 1185 2370 25639 51278 76917 128195 153834 256390 334331 384585 668662 769170 1002993 1671655 2005986 2025481 3343310 4050962 5014965 6076443 10029930 10127405 12152886 20254810 26412149 30382215 52824298 60764430 79236447 132060745 158472894 264121490 396182235 792364470 8571912509 17143825018 25715737527 42859562545 51431475054 85719125090 128578687635 257157375270 677181088211 1354362176422 2031543264633 3385905441055 4063086529266 6771810882110 10157716323165 20315432646330