Base | Representation |
---|---|
bin | 1110010100011… |
… | …10001101000010 |
3 | 22101000201211201 |
4 | 13022032031002 |
5 | 221222321010 |
6 | 15530331414 |
7 | 2656001314 |
oct | 712161502 |
9 | 271021751 |
10 | 120120130 |
11 | 61894039 |
12 | 34289b6a |
13 | 1bb69800 |
14 | 11d4b7b4 |
15 | a82b23a |
hex | 728e342 |
120120130 has 96 divisors (see below), whose sum is σ = 256852944. Its totient is φ = 40255488.
The previous prime is 120120127. The next prime is 120120137. The reversal of 120120130 is 31021021.
It can be written as a sum of positive squares in 24 ways, for example, as 19298449 + 100821681 = 4393^2 + 10041^2 .
It is a Harshad number since it is a multiple of its sum of digits (10).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (120120137) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1062954 + ... + 1063066.
Almost surely, 2120120130 is an apocalyptic number.
120120130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
120120130 is an abundant number, since it is smaller than the sum of its proper divisors (136732814).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
120120130 is a wasteful number, since it uses less digits than its factorization.
120120130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 200 (or 187 counting only the distinct ones).
The product of its (nonzero) digits is 12, while the sum is 10.
The square root of 120120130 is about 10959.9329377510. The cubic root of 120120130 is about 493.4069522267.
Adding to 120120130 its reverse (31021021), we get a palindrome (151141151).
The spelling of 120120130 in words is "one hundred twenty million, one hundred twenty thousand, one hundred thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.186 sec. • engine limits •