Base | Representation |
---|---|
bin | 1000001010101… |
… | …01110001011010 |
3 | 11202220121100120 |
4 | 10011111301122 |
5 | 120014240022 |
6 | 10444214110 |
7 | 1461213000 |
oct | 405256132 |
9 | 152817316 |
10 | 68508762 |
11 | 35742713 |
12 | 1ab3a336 |
13 | 11268b3a |
14 | 9154a70 |
15 | 6033d5c |
hex | 4155c5a |
68508762 has 32 divisors (see below), whose sum is σ = 159792000. Its totient is φ = 19573344.
The previous prime is 68508733. The next prime is 68508763. The reversal of 68508762 is 26780586.
It is a Harshad number since it is a multiple of its sum of digits (42).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68508763) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14587 + ... + 18702.
It is an arithmetic number, because the mean of its divisors is an integer number (4993500).
Almost surely, 268508762 is an apocalyptic number.
68508762 is an abundant number, since it is smaller than the sum of its proper divisors (91283238).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68508762 is a wasteful number, since it uses less digits than its factorization.
68508762 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 33315 (or 33301 counting only the distinct ones).
The product of its (nonzero) digits is 161280, while the sum is 42.
The square root of 68508762 is about 8277.0019934757. The cubic root of 68508762 is about 409.1809187981.
The spelling of 68508762 in words is "sixty-eight million, five hundred eight thousand, seven hundred sixty-two".
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