Base | Representation |
---|---|
bin | 1110100111011… |
… | …0111000000000 |
3 | 11021100120201101 |
4 | 3221312320000 |
5 | 111143214240 |
6 | 10025544144 |
7 | 1343035540 |
oct | 351667000 |
9 | 137316641 |
10 | 61304320 |
11 | 31671930 |
12 | 18645054 |
13 | c91585c |
14 | 81db320 |
15 | 55ae39a |
hex | 3a76e00 |
61304320 has 160 divisors (see below), whose sum is σ = 183845376. Its totient is φ = 19046400.
The previous prime is 61304303. The next prime is 61304333. The reversal of 61304320 is 2340316.
It is a tau number, because it is divible by the number of its divisors (160).
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, 196965 + ... + 197275.
Almost surely, 261304320 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 61304320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91922688).
61304320 is an abundant number, since it is smaller than the sum of its proper divisors (122541056).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
61304320 is a wasteful number, since it uses less digits than its factorization.
61304320 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 352 (or 336 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 19.
The square root of 61304320 is about 7829.7075296591. The cubic root of 61304320 is about 394.3032528380.
Adding to 61304320 its reverse (2340316), we get a palindrome (63644636).
The spelling of 61304320 in words is "sixty-one million, three hundred four thousand, three hundred twenty".
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