Base | Representation |
---|---|
bin | 100110001101… |
… | …0110111001001 |
3 | 1101200210001211 |
4 | 1030122313021 |
5 | 20112023334 |
6 | 1553213121 |
7 | 332164105 |
oct | 114326711 |
9 | 41623054 |
10 | 20032969 |
11 | 10343080 |
12 | 68611a1 |
13 | 41c5438 |
14 | 2936905 |
15 | 1b5aa64 |
hex | 131adc9 |
20032969 has 16 divisors (see below), whose sum is σ = 22929984. Its totient is φ = 17337600.
The previous prime is 20032967. The next prime is 20033009. The reversal of 20032969 is 96923002.
It is not a de Polignac number, because 20032969 - 21 = 20032967 is a prime.
It is a super-2 number, since 2×200329692 = 802639693909922, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 20032969.
It is not an unprimeable number, because it can be changed into a prime (20032967) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18877 + ... + 19909.
It is an arithmetic number, because the mean of its divisors is an integer number (1433124).
Almost surely, 220032969 is an apocalyptic number.
It is an amenable number.
20032969 is a deficient number, since it is larger than the sum of its proper divisors (2897015).
20032969 is a wasteful number, since it uses less digits than its factorization.
20032969 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1128.
The product of its (nonzero) digits is 5832, while the sum is 31.
The square root of 20032969 is about 4475.8204834421. The cubic root of 20032969 is about 271.5908325015.
The spelling of 20032969 in words is "twenty million, thirty-two thousand, nine hundred sixty-nine".
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