Base | Representation |
---|---|
bin | 1011111010110… |
… | …10111100111100 |
3 | 20222010212201212 |
4 | 11331122330330 |
5 | 201044043020 |
6 | 13531023552 |
7 | 2322610022 |
oct | 575327474 |
9 | 228125655 |
10 | 99987260 |
11 | 514929aa |
12 | 2959abb8 |
13 | 1793aa79 |
14 | d3ca712 |
15 | 8ba0cc5 |
hex | 5f5af3c |
99987260 has 12 divisors (see below), whose sum is σ = 209973288. Its totient is φ = 39994896.
The previous prime is 99987257. The next prime is 99987263. The reversal of 99987260 is 6278999.
It is an interprime number because it is at equal distance from previous prime (99987257) and next prime (99987263).
It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.
It is a junction number, because it is equal to n+sod(n) for n = 99987199 and 99987208.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (99987263) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2499662 + ... + 2499701.
It is an arithmetic number, because the mean of its divisors is an integer number (17497774).
Almost surely, 299987260 is an apocalyptic number.
It is an amenable number.
99987260 is an abundant number, since it is smaller than the sum of its proper divisors (109986028).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
99987260 is a wasteful number, since it uses less digits than its factorization.
99987260 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4999372 (or 4999370 counting only the distinct ones).
The product of its (nonzero) digits is 489888, while the sum is 50.
The square root of 99987260 is about 9999.3629797103. The cubic root of 99987260 is about 464.1391712436.
The spelling of 99987260 in words is "ninety-nine million, nine hundred eighty-seven thousand, two hundred sixty".
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