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122555013340 = 22519383842071
BaseRepresentation
bin111001000100011011…
…0010001100011011100
3102201100001212201220011
41302020312101203130
54001443040411330
6132145003133004
711566012265614
oct1621066214334
9381301781804
10122555013340
1147a801234a1
121b903514164
13b731638a96
145d087d7a44
1532c444b82a
hex1c88d918dc

122555013340 has 48 divisors (see below), whose sum is σ = 271618744320. Its totient is φ = 46320586560.

The previous prime is 122555013323. The next prime is 122555013353. The reversal of 122555013340 is 43310555221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275496 + ... + 566575.

It is an arithmetic number, because the mean of its divisors is an integer number (5658723840).

Almost surely, 2122555013340 is an apocalyptic number.

122555013340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122555013340 is an abundant number, since it is smaller than the sum of its proper divisors (149063730980).

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

122555013340 is a wasteful number, since it uses less digits than its factorization.

122555013340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842482 (or 842480 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 122555013340 its reverse (43310555221), we get a palindrome (165865568561).

The spelling of 122555013340 in words is "one hundred twenty-two billion, five hundred fifty-five million, thirteen thousand, three hundred forty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 383 766 1532 1915 3830 7277 7660 14554 29108 36385 72770 145540 842071 1684142 3368284 4210355 8420710 15999349 16841420 31998698 63997396 79996745 159993490 319986980 322513193 645026386 1290052772 1612565965 3225131930 6127750667 6450263860 12255501334 24511002668 30638753335 61277506670 122555013340