Base | Representation |
---|---|
bin | 1011110110011… |
… | …00101101010111 |
3 | 20221001021112000 |
4 | 11323030231113 |
5 | 200421422011 |
6 | 13510330343 |
7 | 2314632264 |
oct | 573145527 |
9 | 227037460 |
10 | 99404631 |
11 | 51125197 |
12 | 293599b3 |
13 | 17795811 |
14 | d2b826b |
15 | 8ad8356 |
hex | 5eccb57 |
99404631 has 32 divisors (see below), whose sum is σ = 153507840. Its totient is φ = 63504000.
The previous prime is 99404629. The next prime is 99404633. The reversal of 99404631 is 13640499.
It is an interprime number because it is at equal distance from previous prime (99404629) and next prime (99404633).
It is not a de Polignac number, because 99404631 - 21 = 99404629 is a prime.
It is a super-2 number, since 2×994046312 = 19762561328492322, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (99404633) by changing a digit.
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 31 ways as a sum of consecutive naturals, for example, 94056 + ... + 95106.
It is an arithmetic number, because the mean of its divisors is an integer number (4797120).
Almost surely, 299404631 is an apocalyptic number.
99404631 is the 6306-th heptagonal number.
99404631 is a deficient number, since it is larger than the sum of its proper divisors (54103209).
99404631 is a wasteful number, since it uses less digits than its factorization.
99404631 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1204 (or 1198 counting only the distinct ones).
The product of its (nonzero) digits is 23328, while the sum is 36.
The square root of 99404631 is about 9970.1871095782. The cubic root of 99404631 is about 463.2358965040.
The spelling of 99404631 in words is "ninety-nine million, four hundred four thousand, six hundred thirty-one".
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