Base | Representation |
---|---|
bin | 1000001001000… |
… | …10011101001010 |
3 | 11202111221000200 |
4 | 10010202131022 |
5 | 114441023240 |
6 | 10435513030 |
7 | 1456346124 |
oct | 404423512 |
9 | 152457020 |
10 | 68298570 |
11 | 356097aa |
12 | 1aa58776 |
13 | 111c4272 |
14 | 90dc214 |
15 | 5ee1930 |
hex | 412274a |
68298570 has 48 divisors (see below), whose sum is σ = 178038432. Its totient is φ = 18165600.
The previous prime is 68298557. The next prime is 68298583. The reversal of 68298570 is 7589286.
It is an interprime number because it is at equal distance from previous prime (68298557) and next prime (68298583).
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46345 + ... + 47795.
It is an arithmetic number, because the mean of its divisors is an integer number (3709134).
Almost surely, 268298570 is an apocalyptic number.
68298570 is an abundant number, since it is smaller than the sum of its proper divisors (109739862).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68298570 is a wasteful number, since it uses less digits than its factorization.
68298570 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1987 (or 1984 counting only the distinct ones).
The product of its (nonzero) digits is 241920, while the sum is 45.
The square root of 68298570 is about 8264.2948882527. The cubic root of 68298570 is about 408.7620202396.
The spelling of 68298570 in words is "sixty-eight million, two hundred ninety-eight thousand, five hundred seventy".
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