Base | Representation |
---|---|
bin | 1001010001000000… |
… | …1100010011000000 |
3 | 20102100020112121220 |
4 | 2110100030103000 |
5 | 20043220211030 |
6 | 1050450515040 |
7 | 115431316506 |
oct | 22420142300 |
9 | 6370215556 |
10 | 2487272640 |
11 | 1067000826 |
12 | 594b95a80 |
13 | 3083c4378 |
14 | 19849a676 |
15 | e8564a10 |
hex | 9440c4c0 |
2487272640 has 56 divisors (see below), whose sum is σ = 7897093680. Its totient is φ = 663272448.
The previous prime is 2487272573. The next prime is 2487272651. The reversal of 2487272640 is 462727842.
It is a junction number, because it is equal to n+sod(n) for n = 2487272592 and 2487272601.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1294495 + ... + 1296414.
It is an arithmetic number, because the mean of its divisors is an integer number (141019530).
Almost surely, 22487272640 is an apocalyptic number.
2487272640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2487272640 is an abundant number, since it is smaller than the sum of its proper divisors (5409821040).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2487272640 is a wasteful number, since it uses less digits than its factorization.
2487272640 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2590929 (or 2590919 counting only the distinct ones).
The product of its (nonzero) digits is 301056, while the sum is 42.
The square root of 2487272640 is about 49872.5640006607. The cubic root of 2487272640 is about 1354.9017307763.
The spelling of 2487272640 in words is "two billion, four hundred eighty-seven million, two hundred seventy-two thousand, six hundred forty".
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