Base | Representation |
---|---|
bin | 1011111010111… |
… | …01010100110100 |
3 | 20222011101001212 |
4 | 11331131110310 |
5 | 201044400410 |
6 | 13531140552 |
7 | 2322650246 |
oct | 575352464 |
9 | 228141055 |
10 | 99996980 |
11 | 5149a236 |
12 | 295a4758 |
13 | 17942315 |
14 | d3d0096 |
15 | 8ba3b05 |
hex | 5f5d534 |
99996980 has 12 divisors (see below), whose sum is σ = 209993700. Its totient is φ = 39998784.
The previous prime is 99996971. The next prime is 99996983. The reversal of 99996980 is 8969999.
It can be written as a sum of positive squares in 2 ways, for example, as 77510416 + 22486564 = 8804^2 + 4742^2 .
It is a hoax number, since the sum of its digits (59) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (99996983) 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, 2499905 + ... + 2499944.
It is an arithmetic number, because the mean of its divisors is an integer number (17499475).
Almost surely, 299996980 is an apocalyptic number.
It is an amenable number.
99996980 is an abundant number, since it is smaller than the sum of its proper divisors (109996720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
99996980 is a wasteful number, since it uses less digits than its factorization.
99996980 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4999858 (or 4999856 counting only the distinct ones).
The product of its (nonzero) digits is 2834352, while the sum is 59.
The square root of 99996980 is about 9999.8489988599. The cubic root of 99996980 is about 464.1542107815.
It can be divided in two parts, 999 and 96980, that added together give a palindrome (97979).
The spelling of 99996980 in words is "ninety-nine million, nine hundred ninety-six thousand, nine hundred eighty".
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