Base | Representation |
---|---|
bin | 111011001110110… |
… | …0001110010011100 |
3 | 12010111202000200120 |
4 | 1312131201302130 |
5 | 13032241431220 |
6 | 525113554540 |
7 | 100152030606 |
oct | 16635416234 |
9 | 5114660616 |
10 | 1987452060 |
11 | 92a957170 |
12 | 475715a50 |
13 | 2589a2b49 |
14 | 14bd50176 |
15 | b9734a40 |
hex | 76761c9c |
1987452060 has 96 divisors (see below), whose sum is σ = 6390316800. Its totient is φ = 456445440.
The previous prime is 1987452037. The next prime is 1987452073. The reversal of 1987452060 is 602547891.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66705 + ... + 91784.
It is an arithmetic number, because the mean of its divisors is an integer number (66565800).
Almost surely, 21987452060 is an apocalyptic number.
1987452060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1987452060 is an abundant number, since it is smaller than the sum of its proper divisors (4402864740).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1987452060 is a wasteful number, since it uses less digits than its factorization.
1987452060 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 158531 (or 158529 counting only the distinct ones).
The product of its (nonzero) digits is 120960, while the sum is 42.
The square root of 1987452060 is about 44580.8485787339. The cubic root of 1987452060 is about 1257.2806178849.
The spelling of 1987452060 in words is "one billion, nine hundred eighty-seven million, four hundred fifty-two thousand, sixty".
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