Base | Representation |
---|---|
bin | 1000001110000… |
… | …10101100000000 |
3 | 11210202021022110 |
4 | 10013002230000 |
5 | 120123024010 |
6 | 10501535320 |
7 | 1465051431 |
oct | 407025400 |
9 | 153667273 |
10 | 68954880 |
11 | 35a17905 |
12 | 1b114540 |
13 | 11393c07 |
14 | 922d488 |
15 | 60c1120 |
hex | 41c2b00 |
68954880 has 72 divisors (see below), whose sum is σ = 220236912. Its totient is φ = 18386944.
The previous prime is 68954869. The next prime is 68954891. The reversal of 68954880 is 8845986.
It is an interprime number because it is at equal distance from previous prime (68954869) and next prime (68954891).
It is a Harshad number since it is a multiple of its sum of digits (48).
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5139 + ... + 12818.
It is an arithmetic number, because the mean of its divisors is an integer number (3058846).
Almost surely, 268954880 is an apocalyptic number.
68954880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
68954880 is an abundant number, since it is smaller than the sum of its proper divisors (151282032).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68954880 is a wasteful number, since it uses less digits than its factorization.
68954880 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17981 (or 17967 counting only the distinct ones).
The product of its (nonzero) digits is 552960, while the sum is 48.
The square root of 68954880 is about 8303.9075139358. The cubic root of 68954880 is about 410.0671712274.
The spelling of 68954880 in words is "sixty-eight million, nine hundred fifty-four thousand, eight hundred eighty".
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