Base | Representation |
---|---|
bin | 111100100011100… |
… | …1001001111111111 |
3 | 12020121102000210022 |
4 | 1321013021033333 |
5 | 13130132303111 |
6 | 533343002355 |
7 | 101232000305 |
oct | 17107111777 |
9 | 5217360708 |
10 | 2031916031 |
11 | 952a66652 |
12 | 4885993bb |
13 | 264c704a2 |
14 | 153c06275 |
15 | bd5b92db |
hex | 791c93ff |
2031916031 has 8 divisors (see below), whose sum is σ = 2146164720. Its totient is φ = 1918397952.
The previous prime is 2031916027. The next prime is 2031916057. The reversal of 2031916031 is 1306191302.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 2031916031 - 22 = 2031916027 is a prime.
It is a super-2 number, since 2×20319160312 = 8257365514069585922, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2031916021) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176930 + ... + 188063.
It is an arithmetic number, because the mean of its divisors is an integer number (268270590).
Almost surely, 22031916031 is an apocalyptic number.
2031916031 is a deficient number, since it is larger than the sum of its proper divisors (114248689).
2031916031 is a wasteful number, since it uses less digits than its factorization.
2031916031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 365305.
The product of its (nonzero) digits is 972, while the sum is 26.
The square root of 2031916031 is about 45076.7792882322. The cubic root of 2031916031 is about 1266.5876592534.
The spelling of 2031916031 in words is "two billion, thirty-one million, nine hundred sixteen thousand, thirty-one".
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