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120112546421 = 7231395367199
BaseRepresentation
bin110111111011101000…
…1000000001001110101
3102111000211221120011102
41233313101000021311
53431442302441141
6131102352415445
711451333541040
oct1576721001165
9374024846142
10120112546421
1146a3744599a
121b341547585
13b43260179a
145b56281c57
1531cecd799b
hex1bf7440275

120112546421 has 16 divisors (see below), whose sum is σ = 144270336000. Its totient is φ = 97768878768.

The previous prime is 120112546409. The next prime is 120112546439. The reversal of 120112546421 is 124645211021.

It is a happy number.

It is not a de Polignac number, because 120112546421 - 230 = 119038804597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120112546471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2661221 + ... + 2705978.

It is an arithmetic number, because the mean of its divisors is an integer number (9016896000).

Almost surely, 2120112546421 is an apocalyptic number.

It is an amenable number.

120112546421 is a deficient number, since it is larger than the sum of its proper divisors (24157789579).

120112546421 is a wasteful number, since it uses less digits than its factorization.

120112546421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5367368.

The product of its (nonzero) digits is 3840, while the sum is 29.

Adding to 120112546421 its reverse (124645211021), we get a palindrome (244757757442).

The spelling of 120112546421 in words is "one hundred twenty billion, one hundred twelve million, five hundred forty-six thousand, four hundred twenty-one".

Divisors: 1 7 23 139 161 973 3197 22379 5367199 37570393 123445577 746040661 864119039 5222284627 17158935203 120112546421