Base | Representation |
---|---|
bin | 1011101010011111… |
… | …1001111100011010 |
3 | 22002012120110021122 |
4 | 2322213321330122 |
5 | 22403020220010 |
6 | 1234404405242 |
7 | 140406154214 |
oct | 27247717432 |
9 | 8065513248 |
10 | 3131023130 |
11 | 1367421024 |
12 | 7346a6822 |
13 | 3ab89a911 |
14 | 219b915b4 |
15 | 134d25855 |
hex | ba9f9f1a |
3131023130 has 16 divisors (see below), whose sum is σ = 5637056544. Its totient is φ = 1252139280.
The previous prime is 3131023123. The next prime is 3131023141. The reversal of 3131023130 is 313201313.
It is a junction number, because it is equal to n+sod(n) for n = 3131023099 and 3131023108.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18869 + ... + 81351.
It is an arithmetic number, because the mean of its divisors is an integer number (352316034).
Almost surely, 23131023130 is an apocalyptic number.
3131023130 is a deficient number, since it is larger than the sum of its proper divisors (2506033414).
3131023130 is a wasteful number, since it uses less digits than its factorization.
3131023130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 67501.
The product of its (nonzero) digits is 162, while the sum is 17.
The square root of 3131023130 is about 55955.5460164585. The cubic root of 3131023130 is about 1462.9475590315.
Adding to 3131023130 its reverse (313201313), we get a palindrome (3444224443).
The spelling of 3131023130 in words is "three billion, one hundred thirty-one million, twenty-three thousand, one hundred thirty".
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