Base | Representation |
---|---|
bin | 1000000111111… |
… | …10100010110010 |
3 | 11202020110020200 |
4 | 10003332202302 |
5 | 114421321344 |
6 | 10432420030 |
7 | 1455164226 |
oct | 403764262 |
9 | 152213220 |
10 | 68151474 |
11 | 35519236 |
12 | 1a9a7616 |
13 | 11172321 |
14 | 90a0786 |
15 | 5eb3069 |
hex | 40fe8b2 |
68151474 has 48 divisors (see below), whose sum is σ = 152216064. Its totient is φ = 22024800.
The previous prime is 68151469. The next prime is 68151491. The reversal of 68151474 is 47415186.
It is a happy number.
It is a Curzon number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147604 + ... + 148064.
It is an arithmetic number, because the mean of its divisors is an integer number (3171168).
Almost surely, 268151474 is an apocalyptic number.
68151474 is an abundant number, since it is smaller than the sum of its proper divisors (84064590).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68151474 is a wasteful number, since it uses less digits than its factorization.
68151474 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 703 (or 700 counting only the distinct ones).
The product of its digits is 26880, while the sum is 36.
The square root of 68151474 is about 8255.3906025094. The cubic root of 68151474 is about 408.4683563283.
The spelling of 68151474 in words is "sixty-eight million, one hundred fifty-one thousand, four hundred seventy-four".
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