Base | Representation |
---|---|
bin | 1110101101101… |
… | …1100101010000 |
3 | 11022010112120000 |
4 | 3223123211100 |
5 | 111244414231 |
6 | 10042450000 |
7 | 1346404260 |
oct | 353334520 |
9 | 138115500 |
10 | 61716816 |
11 | 31923837 |
12 | 18803900 |
13 | ca2b535 |
14 | 82a77a0 |
15 | 56416e6 |
hex | 3adb950 |
61716816 has 100 divisors (see below), whose sum is σ = 204174432. Its totient is φ = 17630784.
The previous prime is 61716799. The next prime is 61716827. The reversal of 61716816 is 61861716.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a nude number because it is divisible by every one of its digits.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5671 + ... + 12473.
Almost surely, 261716816 is an apocalyptic number.
61716816 is the 4536-th octagonal number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 61716816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102087216).
61716816 is an abundant number, since it is smaller than the sum of its proper divisors (142457616).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
61716816 is a wasteful number, since it uses less digits than its factorization.
61716816 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6830 (or 6815 counting only the distinct ones).
The product of its digits is 12096, while the sum is 36.
The square root of 61716816 is about 7856.0050916480. The cubic root of 61716816 is about 395.1856543280.
The spelling of 61716816 in words is "sixty-one million, seven hundred sixteen thousand, eight hundred sixteen".
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