Base | Representation |
---|---|
bin | 1000001010101… |
… | …00000111000100 |
3 | 11202220021000111 |
4 | 10011110013010 |
5 | 120014030311 |
6 | 10444122404 |
7 | 1461154105 |
oct | 405240704 |
9 | 152807014 |
10 | 68501956 |
11 | 35738596 |
12 | 1ab36404 |
13 | 11265a03 |
14 | 91523ac |
15 | 6031d21 |
hex | 41541c4 |
68501956 has 12 divisors (see below), whose sum is σ = 120940092. Its totient is φ = 33947648.
The previous prime is 68501947. The next prime is 68501957. The reversal of 68501956 is 65910586.
It can be written as a sum of positive squares in 2 ways, for example, as 16892100 + 51609856 = 4110^2 + 7184^2 .
It is not an unprimeable number, because it can be changed into a prime (68501957) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75325 + ... + 76228.
It is an arithmetic number, because the mean of its divisors is an integer number (10078341).
Almost surely, 268501956 is an apocalyptic number.
It is an amenable number.
68501956 is a deficient number, since it is larger than the sum of its proper divisors (52438136).
68501956 is a wasteful number, since it uses less digits than its factorization.
68501956 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 151670 (or 151668 counting only the distinct ones).
The product of its (nonzero) digits is 64800, while the sum is 40.
The square root of 68501956 is about 8276.5908440613. The cubic root of 68501956 is about 409.1673683291.
The spelling of 68501956 in words is "sixty-eight million, five hundred one thousand, nine hundred fifty-six".
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