Base | Representation |
---|---|
bin | 111100010101011101010 |
3 | 10201110000200 |
4 | 13202223222 |
5 | 1001231231 |
6 | 110213030 |
7 | 22543020 |
oct | 7425352 |
9 | 3643020 |
10 | 1977066 |
11 | 1130443 |
12 | 7b4176 |
13 | 542b80 |
14 | 396710 |
15 | 290be6 |
hex | 1e2aea |
1977066 has 96 divisors (see below), whose sum is σ = 5660928. Its totient is φ = 483840.
The previous prime is 1977023. The next prime is 1977067. The reversal of 1977066 is 6607791.
1977066 is a nontrivial binomial coefficient, being equal to C(1989, 2).
It is a self number, because there is not a number n which added to its sum of digits gives 1977066.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1977067) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27811 + ... + 27881.
It is an arithmetic number, because the mean of its divisors is an integer number (58968).
21977066 is an apocalyptic number.
1977066 is the 1988-th triangular number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1977066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2830464).
1977066 is an abundant number, since it is smaller than the sum of its proper divisors (3683862).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1977066 is a wasteful number, since it uses less digits than its factorization.
1977066 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 116 (or 113 counting only the distinct ones).
The product of its (nonzero) digits is 15876, while the sum is 36.
The square root of 1977066 is about 1406.0817899397. The cubic root of 1977066 is about 125.5086685758.
Subtracting from 1977066 its product of nonzero digits (15876), we obtain a triangular number (1961190 = T1980).
The spelling of 1977066 in words is "one million, nine hundred seventy-seven thousand, sixty-six".
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