Base | Representation |
---|---|
bin | 1110101000101… |
… | …0110100010000 |
3 | 11021111201202120 |
4 | 3222022310100 |
5 | 111203323000 |
6 | 10031414240 |
7 | 1343525634 |
oct | 352126420 |
9 | 137451676 |
10 | 61386000 |
11 | 31718235 |
12 | 18684380 |
13 | c943aa0 |
14 | 821cdc4 |
15 | 55c86a0 |
hex | 3a8ad10 |
61386000 has 160 divisors (see below), whose sum is σ = 213403008. Its totient is φ = 15091200.
The previous prime is 61385999. The next prime is 61386029. The reversal of 61386000 is 68316.
It is a Harshad number since it is a multiple of its sum of digits (24).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77607 + ... + 78393.
Almost surely, 261386000 is an apocalyptic number.
61386000 is a gapful number since it is divisible by the number (60) 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 61386000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106701504).
61386000 is an abundant number, since it is smaller than the sum of its proper divisors (152017008).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
61386000 is a wasteful number, since it uses less digits than its factorization.
61386000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 826 (or 810 counting only the distinct ones).
The product of its (nonzero) digits is 864, while the sum is 24.
The square root of 61386000 is about 7834.9218247536. The cubic root of 61386000 is about 394.4782943171.
The spelling of 61386000 in words is "sixty-one million, three hundred eighty-six thousand".
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