Base | Representation |
---|---|
bin | 100000000101011010… |
… | …1001101101101010000 |
3 | 20120211211202112211010 |
4 | 1000022311031231100 |
5 | 2112102201324142 |
6 | 51352555450520 |
7 | 4656302345145 |
oct | 1001265155520 |
9 | 216754675733 |
10 | 68901198672 |
11 | 27247a263a9 |
12 | 1142aa56a40 |
13 | 66608c6457 |
14 | 3498b0a3cc |
15 | 1bd3e14e9c |
hex | 100ad4db50 |
68901198672 has 80 divisors (see below), whose sum is σ = 184436195328. Its totient is φ = 22141557120.
The previous prime is 68901198649. The next prime is 68901198733. The reversal of 68901198672 is 27689110986.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303313 + ... + 479375.
Almost surely, 268901198672 is an apocalyptic number.
68901198672 is a gapful number since it is divisible by the number (62) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68901198672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92218097664).
68901198672 is an abundant number, since it is smaller than the sum of its proper divisors (115534996656).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68901198672 is a wasteful number, since it uses less digits than its factorization.
68901198672 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 176368 (or 176362 counting only the distinct ones).
The product of its (nonzero) digits is 2612736, while the sum is 57.
The spelling of 68901198672 in words is "sixty-eight billion, nine hundred one million, one hundred ninety-eight thousand, six hundred seventy-two".
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