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120712380338779 = 29891092411780411
BaseRepresentation
bin11011011100100110001010…
…100011001101001001011011
3120211101222202100001210202021
4123130212022203031021123
5111310222423331320104
61104422300231515311
734266116213150635
oct3334461243151133
9524358670053667
10120712380338779
113550a918810649
1211656a4bb28b37
135248189777858
1421b47206b9a55
15de501555b754
hex6dc98a8cd25b

120712380338779 has 32 divisors (see below), whose sum is σ = 127965332088000. Its totient is φ = 113709231820800.

The previous prime is 120712380338777. The next prime is 120712380338783. The reversal of 120712380338779 is 977833083217021.

It is a cyclic number.

It is not a de Polignac number, because 120712380338779 - 21 = 120712380338777 is a prime.

It is a super-2 number, since 2×1207123803387792 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120712380338777) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66910084 + ... + 68690494.

It is an arithmetic number, because the mean of its divisors is an integer number (3998916627750).

Almost surely, 2120712380338779 is an apocalyptic number.

120712380338779 is a deficient number, since it is larger than the sum of its proper divisors (7252951749221).

120712380338779 is a wasteful number, since it uses less digits than its factorization.

120712380338779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780879.

The product of its (nonzero) digits is 21337344, while the sum is 61.

The spelling of 120712380338779 in words is "one hundred twenty trillion, seven hundred twelve billion, three hundred eighty million, three hundred thirty-eight thousand, seven hundred seventy-nine".

Divisors: 1 29 89 109 241 2581 3161 6989 9701 21449 26269 281329 622021 761801 1780411 2337941 51631919 67800289 158456579 194064799 429079051 4595240791 5627879171 12443292479 17271767111 38188035539 46769616559 500881246219 1107453030631 1356318880211 4162495873751 120712380338779