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20514403250660 = 225111729189142571
BaseRepresentation
bin1001010101000011000011…
…01101111111000111100100
32200122011021000221011101102
410222201201231333013210
510142101444213010120
6111344104201015232
74215055015350554
oct452414155770744
980564230834342
1020514403250660
11659a122909980
1223739b4184518
13b5a66644c727
1450cc8c327164
15258960203d75
hex12a861b7f1e4

20514403250660 has 96 divisors (see below), whose sum is σ = 51477042395520. Its totient is φ = 6778869708800.

The previous prime is 20514403250651. The next prime is 20514403250713. The reversal of 20514403250660 is 6605230441502.

It is an unprimeable number.

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, 94462826 + ... + 94679745.

It is an arithmetic number, because the mean of its divisors is an integer number (536219191620).

Almost surely, 220514403250660 is an apocalyptic number.

20514403250660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20514403250660 is an abundant number, since it is smaller than the sum of its proper divisors (30962639144860).

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

20514403250660 is a wasteful number, since it uses less digits than its factorization.

20514403250660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189142637 (or 189142635 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 20514403250660 in words is "twenty trillion, five hundred fourteen billion, four hundred three million, two hundred fifty thousand, six hundred sixty".

Divisors: 1 2 4 5 10 11 17 20 22 29 34 44 55 58 68 85 110 116 145 170 187 220 290 319 340 374 493 580 638 748 935 986 1276 1595 1870 1972 2465 3190 3740 4930 5423 6380 9860 10846 21692 27115 54230 108460 189142571 378285142 756570284 945712855 1891425710 2080568281 3215423707 3782851420 4161136562 5485134559 6430847414 8322273124 10402841405 10970269118 12861694828 16077118535 20805682810 21940538236 27425672795 32154237070 35369660777 41611365620 54851345590 60336480149 64308474140 70739321554 93247287503 109702691180 120672960298 141478643108 176848303885 186494575006 241345920596 301682400745 353696607770 372989150012 466236437515 603364801490 707393215540 932472875030 1025720162533 1206729602980 1864945750060 2051440325066 4102880650132 5128600812665 10257201625330 20514403250660