Base | Representation |
---|---|
bin | 11101000011101… |
… | …000110110100100 |
3 | 1020222022012201100 |
4 | 131003220312210 |
5 | 1444244234103 |
6 | 120212400100 |
7 | 15036423321 |
oct | 3503506644 |
9 | 1228265640 |
10 | 487493028 |
11 | 2301a4800 |
12 | 117316030 |
13 | 79cc6419 |
14 | 48a5bb48 |
15 | 2cbe75a3 |
hex | 1d0e8da4 |
487493028 has 54 divisors (see below), whose sum is σ = 1354495142. Its totient is φ = 147723840.
The previous prime is 487493009. The next prime is 487493047. The reversal of 487493028 is 820394784.
It is an interprime number because it is at equal distance from previous prime (487493009) and next prime (487493047).
It can be written as a sum of positive squares in only one way, i.e., 483032484 + 4460544 = 21978^2 + 2112^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 51601 + ... + 60312.
Almost surely, 2487493028 is an apocalyptic number.
It is an amenable number.
487493028 is an abundant number, since it is smaller than the sum of its proper divisors (867002114).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
487493028 is a wasteful number, since it uses less digits than its factorization.
487493028 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 111945 (or 111929 counting only the distinct ones).
The product of its (nonzero) digits is 387072, while the sum is 45.
The square root of 487493028 is about 22079.2442805455. The cubic root of 487493028 is about 787.0267063824.
The spelling of 487493028 in words is "four hundred eighty-seven million, four hundred ninety-three thousand, twenty-eight".
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