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20550544256352 = 25311163811188007
BaseRepresentation
bin1001010110000110010111…
…11000111110110101100000
32200202121112202121110212210
410223003023320332311200
510143200003312200402
6111412442324122120
74220504434004235
oct453031370766540
980677482543783
1020550544256352
116603489532420
12237a9bb836340
13b60ba5b805b6
1451091a1a778c
1525987801a06c
hex12b0cbe3ed60

20550544256352 has 96 divisors (see below), whose sum is σ = 58852927897344. Its totient is φ = 6227052249600.

The previous prime is 20550544256339. The next prime is 20550544256377. The reversal of 20550544256352 is 25365244505502.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 16704333 + ... + 17892339.

It is an arithmetic number, because the mean of its divisors is an integer number (613051332264).

Almost surely, 220550544256352 is an apocalyptic number.

20550544256352 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20550544256352 is an abundant number, since it is smaller than the sum of its proper divisors (38302383640992).

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

20550544256352 is a wasteful number, since it uses less digits than its factorization.

20550544256352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204412 (or 1204404 counting only the distinct ones).

The product of its (nonzero) digits is 7200000, while the sum is 48.

The spelling of 20550544256352 in words is "twenty trillion, five hundred fifty billion, five hundred forty-four million, two hundred fifty-six thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 66 88 96 132 176 264 352 528 1056 16381 32762 49143 65524 98286 131048 180191 196572 262096 360382 393144 524192 540573 720764 786288 1081146 1188007 1441528 1572576 2162292 2376014 2883056 3564021 4324584 4752028 5766112 7128042 8649168 9504056 13068077 14256084 17298336 19008112 26136154 28512168 38016224 39204231 52272308 57024336 78408462 104544616 114048672 156816924 209089232 313633848 418178464 627267696 1254535392 19460742667 38921485334 58382228001 77842970668 116764456002 155685941336 214068169337 233528912004 311371882672 428136338674 467057824008 622743765344 642204508011 856272677348 934115648016 1284409016022 1712545354696 1868231296032 2568818032044 3425090709392 5137636064088 6850181418784 10275272128176 20550544256352