Base | Representation |
---|---|
bin | 111111010010000000… |
… | …000001011111100010 |
3 | 20111101101122100221110 |
4 | 333102000001133202 |
5 | 2103124104342124 |
6 | 51114215404150 |
7 | 4623544116600 |
oct | 772200013742 |
9 | 214341570843 |
10 | 67947730914 |
11 | 268a87a4a18 |
12 | 11203683656 |
13 | 653b1cc14b |
14 | 3408232870 |
15 | 1b7a376029 |
hex | fd20017e2 |
67947730914 has 24 divisors (see below), whose sum is σ = 158082476688. Its totient is φ = 19413637320.
The previous prime is 67947730909. The next prime is 67947730937. The reversal of 67947730914 is 41903774976.
It is a super-2 number, since 2×679477309142 (a number of 22 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115557072 + ... + 115557659.
It is an arithmetic number, because the mean of its divisors is an integer number (6586769862).
Almost surely, 267947730914 is an apocalyptic number.
67947730914 is an abundant number, since it is smaller than the sum of its proper divisors (90134745774).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
67947730914 is a wasteful number, since it uses less digits than its factorization.
67947730914 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 231114750 (or 231114743 counting only the distinct ones).
The product of its (nonzero) digits is 8001504, while the sum is 57.
The spelling of 67947730914 in words is "sixty-seven billion, nine hundred forty-seven million, seven hundred thirty thousand, nine hundred fourteen".
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