Base | Representation |
---|---|
bin | 111111010100000101… |
… | …110111001100011111 |
3 | 20111110211122212200020 |
4 | 333110011313030133 |
5 | 2103212100103111 |
6 | 51121511403223 |
7 | 4624451254554 |
oct | 772405671437 |
9 | 214424585606 |
10 | 67982816031 |
11 | 26916588989 |
12 | 11213383513 |
13 | 6545564880 |
14 | 340cb66a2b |
15 | 1b7d4a6906 |
hex | fd417731f |
67982816031 has 32 divisors (see below), whose sum is σ = 103184256000. Its totient is φ = 39467772288.
The previous prime is 67982816029. The next prime is 67982816063. The reversal of 67982816031 is 13061828976.
It is not a de Polignac number, because 67982816031 - 21 = 67982816029 is a prime.
It is a super-2 number, since 2×679828160312 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (67982816071) 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, 14836 + ... + 369033.
It is an arithmetic number, because the mean of its divisors is an integer number (3224508000).
Almost surely, 267982816031 is an apocalyptic number.
67982816031 is a deficient number, since it is larger than the sum of its proper divisors (35201439969).
67982816031 is a wasteful number, since it uses less digits than its factorization.
67982816031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 384143.
The product of its (nonzero) digits is 870912, while the sum is 51.
The spelling of 67982816031 in words is "sixty-seven billion, nine hundred eighty-two million, eight hundred sixteen thousand, thirty-one".
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