Base | Representation |
---|---|
bin | 1110010100100… |
… | …00111010001010 |
3 | 22101001022001002 |
4 | 13022100322022 |
5 | 221223144320 |
6 | 15530455002 |
7 | 2656045523 |
oct | 712207212 |
9 | 271038032 |
10 | 120131210 |
11 | 618a13a1 |
12 | 34294462 |
13 | 1bb71874 |
14 | 11d5184a |
15 | a82e675 |
hex | 7290e8a |
120131210 has 16 divisors (see below), whose sum is σ = 216361800. Its totient is φ = 48024576.
The previous prime is 120131177. The next prime is 120131213. The reversal of 120131210 is 12131021.
It can be written as a sum of positive squares in 4 ways, for example, as 118962649 + 1168561 = 10907^2 + 1081^2 .
It is a junction number, because it is equal to n+sod(n) for n = 120131191 and 120131200.
It is not an unprimeable number, because it can be changed into a prime (120131213) 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, 28946 + ... + 32834.
Almost surely, 2120131210 is an apocalyptic number.
120131210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
120131210 is a deficient number, since it is larger than the sum of its proper divisors (96230590).
120131210 is a wasteful number, since it uses less digits than its factorization.
120131210 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6985.
The product of its (nonzero) digits is 12, while the sum is 11.
The square root of 120131210 is about 10960.4384036406. The cubic root of 120131210 is about 493.4221225426.
Adding to 120131210 its reverse (12131021), we get a palindrome (132262231).
The spelling of 120131210 in words is "one hundred twenty million, one hundred thirty-one thousand, two hundred ten".
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