Base | Representation |
---|---|
bin | 1011111001111… |
… | …10011011011000 |
3 | 20221220221110121 |
4 | 11330332123120 |
5 | 201031323144 |
6 | 13524323024 |
7 | 2321612263 |
oct | 574763330 |
9 | 227827417 |
10 | 99870424 |
11 | 51413145 |
12 | 29543474 |
13 | 178c9834 |
14 | d399cda |
15 | 8b7b384 |
hex | 5f3e6d8 |
99870424 has 64 divisors (see below), whose sum is σ = 201025440. Its totient is φ = 46448640.
The previous prime is 99870389. The next prime is 99870443. The reversal of 99870424 is 42407899.
It is a Harshad number since it is a multiple of its sum of digits (43).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1029544 + ... + 1029640.
Almost surely, 299870424 is an apocalyptic number.
It is an amenable number.
99870424 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
99870424 is a wasteful number, since it uses less digits than its factorization.
99870424 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 260 (or 256 counting only the distinct ones).
The product of its (nonzero) digits is 145152, while the sum is 43.
The square root of 99870424 is about 9993.5190998967. The cubic root of 99870424 is about 463.9583172029.
The spelling of 99870424 in words is "ninety-nine million, eight hundred seventy thousand, four hundred twenty-four".
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