Base | Representation |
---|---|
bin | 11110110010100000100101… |
… | …10100100101111100010011 |
3 | 22212201122111010001011010022 |
4 | 33121100102310211330103 |
5 | 32333244224114342211 |
6 | 355555442333054055 |
7 | 20155416156220304 |
oct | 1731202264457423 |
9 | 285648433034108 |
10 | 67706180230931 |
11 | 1a63403670a010 |
12 | 7715ab292732b |
13 | 2ba1885b64818 |
14 | 12a0dd499a7ab |
15 | 7c62d6be3bdb |
hex | 3d9412d25f13 |
67706180230931 has 32 divisors (see below), whose sum is σ = 78205099898880. Its totient is φ = 57969320716800.
The previous prime is 67706180230901. The next prime is 67706180230939. The reversal of 67706180230931 is 13903208160776.
67706180230931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a cyclic number.
It is not a de Polignac number, because 67706180230931 - 218 = 67706179968787 is a prime.
It is a super-2 number, since 2×677061802309312 (a number of 28 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (67706180230939) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 437892446 + ... + 438047036.
It is an arithmetic number, because the mean of its divisors is an integer number (2443909371840).
Almost surely, 267706180230931 is an apocalyptic number.
67706180230931 is a deficient number, since it is larger than the sum of its proper divisors (10498919667949).
67706180230931 is a wasteful number, since it uses less digits than its factorization.
67706180230931 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 166907.
The product of its (nonzero) digits is 2286144, while the sum is 53.
The spelling of 67706180230931 in words is "sixty-seven trillion, seven hundred six billion, one hundred eighty million, two hundred thirty thousand, nine hundred thirty-one".
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