Base | Representation |
---|---|
bin | 1000001000101… |
… | …00111001101011 |
3 | 11202102002212102 |
4 | 10010110321223 |
5 | 114432234201 |
6 | 10434404015 |
7 | 1456025222 |
oct | 404247153 |
9 | 152362772 |
10 | 68243051 |
11 | 35581018 |
12 | 1aa3060b |
13 | 111a4c06 |
14 | 90c5cb9 |
15 | 5ed026b |
hex | 4114e6b |
68243051 has 8 divisors (see below), whose sum is σ = 69408144. Its totient is φ = 67082400.
The previous prime is 68243027. The next prime is 68243053. The reversal of 68243051 is 15034286.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 68243051 - 26 = 68242987 is a prime.
It is a super-2 number, since 2×682430512 = 9314228019577202, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (68243053) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46241 + ... + 47693.
It is an arithmetic number, because the mean of its divisors is an integer number (8676018).
Almost surely, 268243051 is an apocalyptic number.
68243051 is a deficient number, since it is larger than the sum of its proper divisors (1165093).
68243051 is a wasteful number, since it uses less digits than its factorization.
68243051 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2221.
The product of its (nonzero) digits is 5760, while the sum is 29.
The square root of 68243051 is about 8260.9352376108. The cubic root of 68243051 is about 408.6512311430.
The spelling of 68243051 in words is "sixty-eight million, two hundred forty-three thousand, fifty-one".
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