Base | Representation |
---|---|
bin | 1010100000100… |
… | …00111111100001 |
3 | 20010212111001021 |
4 | 11100100333201 |
5 | 140031244420 |
6 | 12425205441 |
7 | 2120156020 |
oct | 520207741 |
9 | 203774037 |
10 | 88149985 |
11 | 45838430 |
12 | 25630881 |
13 | 15354b71 |
14 | b9c88b7 |
15 | 7b137aa |
hex | 5410fe1 |
88149985 has 16 divisors (see below), whose sum is σ = 131882112. Its totient is φ = 54950400.
The previous prime is 88149983. The next prime is 88149989. The reversal of 88149985 is 58994188.
It is not a de Polignac number, because 88149985 - 21 = 88149983 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (88149983) 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, 114096 + ... + 114865.
It is an arithmetic number, because the mean of its divisors is an integer number (8242632).
Almost surely, 288149985 is an apocalyptic number.
It is an amenable number.
88149985 is a deficient number, since it is larger than the sum of its proper divisors (43732127).
88149985 is a wasteful number, since it uses less digits than its factorization.
88149985 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 228984.
The product of its digits is 829440, while the sum is 52.
The square root of 88149985 is about 9388.8223436169. The cubic root of 88149985 is about 445.0485744224.
The spelling of 88149985 in words is "eighty-eight million, one hundred forty-nine thousand, nine hundred eighty-five".
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