Base | Representation |
---|---|
bin | 11111001101001000001100… |
… | …11000111111011010011110 |
3 | 22222222002021111221100102111 |
4 | 33212210012120333122132 |
5 | 32443240344210441221 |
6 | 401535543222344234 |
7 | 20311455246364420 |
oct | 1746440630773236 |
9 | 288862244840374 |
10 | 68620799702686 |
11 | 1a956a10545370 |
12 | 7843206b8b07a |
13 | 2c39bb538521a |
14 | 12d339b830810 |
15 | 7deeb791abe1 |
hex | 3e690663f69e |
68620799702686 has 64 divisors (see below), whose sum is σ = 131327124042240. Its totient is φ = 26115379954560.
The previous prime is 68620799702683. The next prime is 68620799702701.
68620799702686 is nontrivially palindromic in base 10.
It is a super-2 number, since 2×686207997026862 (a number of 28 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68620799702683) 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, 16665621 + ... + 20371168.
It is an arithmetic number, because the mean of its divisors is an integer number (2051986313160).
Almost surely, 268620799702686 is an apocalyptic number.
68620799702686 is a deficient number, since it is larger than the sum of its proper divisors (62706324339554).
68620799702686 is a wasteful number, since it uses less digits than its factorization.
68620799702686 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 37037089.
The product of its (nonzero) digits is 1316818944, while the sum is 76.
The spelling of 68620799702686 in words is "sixty-eight trillion, six hundred twenty billion, seven hundred ninety-nine million, seven hundred two thousand, six hundred eighty-six".
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