Base | Representation |
---|---|
bin | 1011010010101100… |
… | …1011111100111111 |
3 | 21211020202221011120 |
4 | 2310223023330333 |
5 | 22201443020111 |
6 | 1220441322023 |
7 | 135054642120 |
oct | 26453137477 |
9 | 7736687146 |
10 | 3031220031 |
11 | 1316054524 |
12 | 707196313 |
13 | 393cc5928 |
14 | 20a812047 |
15 | 12b1ae406 |
hex | b4acbf3f |
3031220031 has 16 divisors (see below), whose sum is σ = 4638336000. Its totient is φ = 1724875488.
The previous prime is 3031219987. The next prime is 3031220039. The reversal of 3031220031 is 1300221303.
It is not a de Polignac number, because 3031220031 - 27 = 3031219903 is a prime.
It is a super-2 number, since 2×30312200312 = 18376589752671281922, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3031220039) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296956 + ... + 306993.
It is an arithmetic number, because the mean of its divisors is an integer number (289896000).
Almost surely, 23031220031 is an apocalyptic number.
3031220031 is a deficient number, since it is larger than the sum of its proper divisors (1607115969).
3031220031 is a wasteful number, since it uses less digits than its factorization.
3031220031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 604198.
The product of its (nonzero) digits is 108, while the sum is 15.
The square root of 3031220031 is about 55056.5166987524. The cubic root of 3031220031 is about 1447.2353235331.
Adding to 3031220031 its reverse (1300221303), we get a palindrome (4331441334).
The spelling of 3031220031 in words is "three billion, thirty-one million, two hundred twenty thousand, thirty-one".
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