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551305151200 = 25521129610391
BaseRepresentation
bin10000000010111000101…
…10010000001011100000
31221201000101220102201201
420001130112100023200
533013033104314300
61101133250410544
754554566315546
oct10013426201340
91851011812651
10551305151200
111a2897426a01
128aa1ab90a54
133ccac40a2cb
141c97d015d96
15e519d8466a
hex805c5902e0

551305151200 has 72 divisors (see below), whose sum is σ = 1347068000880. Its totient is φ = 220326374400.

The previous prime is 551305151197. The next prime is 551305151213. The reversal of 551305151200 is 2151503155.

It is a super-2 number, since 2×5513051512002 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 598005 + ... + 1208395.

It is an arithmetic number, because the mean of its divisors is an integer number (18709277790).

Almost surely, 2551305151200 is an apocalyptic number.

551305151200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551305151200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (673534000440).

551305151200 is an abundant number, since it is smaller than the sum of its proper divisors (795762849680).

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

551305151200 is a wasteful number, since it uses less digits than its factorization.

551305151200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611540 (or 611527 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 28.

Adding to 551305151200 its reverse (2151503155), we get a palindrome (553456654355).

The spelling of 551305151200 in words is "five hundred fifty-one billion, three hundred five million, one hundred fifty-one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 200 400 800 1129 2258 4516 5645 9032 11290 18064 22580 28225 36128 45160 56450 90320 112900 180640 225800 451600 610391 903200 1220782 2441564 3051955 4883128 6103910 9766256 12207820 15259775 19532512 24415640 30519550 48831280 61039100 97662560 122078200 244156400 488312800 689131439 1378262878 2756525756 3445657195 5513051512 6891314390 11026103024 13782628780 17228285975 22052206048 27565257560 34456571950 55130515120 68913143900 110261030240 137826287800 275652575600 551305151200