Base | Representation |
---|---|
bin | 1000001101100… |
… | …00100001001000 |
3 | 11210121111020000 |
4 | 10012300201020 |
5 | 120113133311 |
6 | 10500203000 |
7 | 1464321441 |
oct | 406604110 |
9 | 153544200 |
10 | 68880456 |
11 | 359769a7 |
12 | 1b099460 |
13 | 11369088 |
14 | 92102c8 |
15 | 60a9056 |
hex | 41b0848 |
68880456 has 40 divisors (see below), whose sum is σ = 192930870. Its totient is φ = 22959936.
The previous prime is 68880439. The next prime is 68880473. The reversal of 68880456 is 65408886.
It is an interprime number because it is at equal distance from previous prime (68880439) and next prime (68880473).
It can be written as a sum of positive squares in only one way, i.e., 55264356 + 13616100 = 7434^2 + 3690^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 52501 + ... + 53796.
Almost surely, 268880456 is an apocalyptic number.
It is an amenable number.
68880456 is an abundant number, since it is smaller than the sum of its proper divisors (124050414).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68880456 is a wasteful number, since it uses less digits than its factorization.
68880456 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 106315 (or 106302 counting only the distinct ones).
The product of its (nonzero) digits is 368640, while the sum is 45.
The square root of 68880456 is about 8299.4250403266. The cubic root of 68880456 is about 409.9195876406.
The spelling of 68880456 in words is "sixty-eight million, eight hundred eighty thousand, four hundred fifty-six".
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