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122766071072 = 2523226932
BaseRepresentation
bin111001001010101101…
…1011001010100100000
3102201212210000120200012
41302111123121110200
54002411103233242
6132221542544052
711604154246361
oct1622533312440
9381783016605
10122766071072
1148079279277
121b962138028
13b766295208
145d28857b68
1532d7c3c282
hex1c956d9520

122766071072 has 54 divisors (see below), whose sum is σ = 252754959177. Its totient is φ = 58692405376.

The previous prime is 122766070951. The next prime is 122766071083. The reversal of 122766071072 is 270170667221.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 121770289936 + 995781136 = 348956^2 + 31556^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=247756.

It is a Duffinian 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 8 ways as a sum of consecutive naturals, for example, 45585758 + ... + 45588450.

Almost surely, 2122766071072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122766071072

122766071072 is an abundant number, since it is smaller than the sum of its proper divisors (129988888105).

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

122766071072 is an frugal number, since it uses more digits than its factorization.

122766071072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5442 (or 2718 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 41.

The spelling of 122766071072 in words is "one hundred twenty-two billion, seven hundred sixty-six million, seventy-one thousand, seventy-two".

Divisors: 1 2 4 8 16 23 32 46 92 184 368 529 736 1058 2116 2693 4232 5386 8464 10772 16928 21544 43088 61939 86176 123878 247756 495512 991024 1424597 1982048 2849194 5698388 7252249 11396776 14504498 22793552 29008996 45587104 58017992 116035984 166801727 232071968 333603454 667206908 1334413816 2668827632 3836439721 5337655264 7672879442 15345758884 30691517768 61383035536 122766071072