Base | Representation |
---|---|
bin | 111011001101111… |
… | …1100100100111000 |
3 | 12010110221222000100 |
4 | 1312123330210320 |
5 | 13032140144441 |
6 | 525101035400 |
7 | 100145353143 |
oct | 16633744470 |
9 | 5113858010 |
10 | 1987037496 |
11 | 92a6a3754 |
12 | 475555b60 |
13 | 258889242 |
14 | 14bc8305a |
15 | b96a1cb6 |
hex | 766fc938 |
1987037496 has 48 divisors (see below), whose sum is σ = 5442044400. Its totient is φ = 654901632.
The previous prime is 1987037477. The next prime is 1987037519. The reversal of 1987037496 is 6947307891.
It is a happy number.
It is a super-3 number, since 3×19870374963 (a number of 29 digits) contains 333 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148636 + ... + 161451.
It is an arithmetic number, because the mean of its divisors is an integer number (113375925).
Almost surely, 21987037496 is an apocalyptic number.
It is an amenable number.
1987037496 is an abundant number, since it is smaller than the sum of its proper divisors (3455006904).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1987037496 is a wasteful number, since it uses less digits than its factorization.
1987037496 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 310188 (or 310181 counting only the distinct ones).
The product of its (nonzero) digits is 2286144, while the sum is 54.
The square root of 1987037496 is about 44576.1987612223. The cubic root of 1987037496 is about 1257.1931927947.
The spelling of 1987037496 in words is "one billion, nine hundred eighty-seven million, thirty-seven thousand, four hundred ninety-six".
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