Base | Representation |
---|---|
bin | 11101000011110… |
… | …110110010001011 |
3 | 1020222102002222210 |
4 | 131003312302023 |
5 | 1444303100331 |
6 | 120213520203 |
7 | 15040051560 |
oct | 3503666213 |
9 | 1228362883 |
10 | 487550091 |
11 | 230233666 |
12 | 117343063 |
13 | 7a0163a2 |
14 | 48a74867 |
15 | 2cc09446 |
hex | 1d0f6c8b |
487550091 has 16 divisors (see below), whose sum is σ = 745188608. Its totient is φ = 277754400.
The previous prime is 487550087. The next prime is 487550111. The reversal of 487550091 is 190055784.
It is not a de Polignac number, because 487550091 - 22 = 487550087 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (487550891) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28120 + ... + 42021.
It is an arithmetic number, because the mean of its divisors is an integer number (46574288).
Almost surely, 2487550091 is an apocalyptic number.
487550091 is a deficient number, since it is larger than the sum of its proper divisors (257638517).
487550091 is a wasteful number, since it uses less digits than its factorization.
487550091 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 70482.
The product of its (nonzero) digits is 50400, while the sum is 39.
The square root of 487550091 is about 22080.5364744609. The cubic root of 487550091 is about 787.0574133875.
The spelling of 487550091 in words is "four hundred eighty-seven million, five hundred fifty thousand, ninety-one".
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