Base | Representation |
---|---|
bin | 111101111101… |
… | …110100111111 |
3 | 1010120021121210 |
4 | 331331310333 |
5 | 13124302111 |
6 | 1340055503 |
7 | 255033456 |
oct | 75756477 |
9 | 33507553 |
10 | 16244031 |
11 | 9195421 |
12 | 5534593 |
13 | 349996b |
14 | 222bb9d |
15 | 165d0a6 |
hex | f7dd3f |
16244031 has 32 divisors (see below), whose sum is σ = 24422400. Its totient is φ = 9555840.
The previous prime is 16244021. The next prime is 16244047. The reversal of 16244031 is 13044261.
It is not a de Polignac number, because 16244031 - 215 = 16211263 is a prime.
It is a super-2 number, since 2×162440312 = 527737086257922, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 16243989 and 16244007.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (16244021) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51085 + ... + 51401.
It is an arithmetic number, because the mean of its divisors is an integer number (763200).
Almost surely, 216244031 is an apocalyptic number.
16244031 is a deficient number, since it is larger than the sum of its proper divisors (8178369).
16244031 is a wasteful number, since it uses less digits than its factorization.
16244031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 399.
The product of its (nonzero) digits is 576, while the sum is 21.
The square root of 16244031 is about 4030.3884428179. The cubic root of 16244031 is about 253.2588340879.
Adding to 16244031 its reverse (13044261), we get a palindrome (29288292).
The spelling of 16244031 in words is "sixteen million, two hundred forty-four thousand, thirty-one".
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