Base | Representation |
---|---|
bin | 1110100011110… |
… | …00111001101110 |
3 | 22111210211220110 |
4 | 13101320321232 |
5 | 222231130110 |
6 | 20041400450 |
7 | 3012042141 |
oct | 721707156 |
9 | 274724813 |
10 | 122130030 |
11 | 62a37110 |
12 | 34a99126 |
13 | 1c3c15b9 |
14 | 12312058 |
15 | aac6a20 |
hex | 7478e6e |
122130030 has 32 divisors (see below), whose sum is σ = 319759488. Its totient is φ = 29607200.
The previous prime is 122129963. The next prime is 122130037. The reversal of 122130030 is 30031221.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 122129988 and 122130015.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (122130037) 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, 184716 + ... + 185375.
It is an arithmetic number, because the mean of its divisors is an integer number (9992484).
Almost surely, 2122130030 is an apocalyptic number.
122130030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
122130030 is an abundant number, since it is smaller than the sum of its proper divisors (197629458).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
122130030 is a wasteful number, since it uses less digits than its factorization.
122130030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 370112.
The product of its (nonzero) digits is 36, while the sum is 12.
The square root of 122130030 is about 11051.2456311495. The cubic root of 122130030 is about 496.1437078170.
Adding to 122130030 its reverse (30031221), we get a palindrome (152161251).
The spelling of 122130030 in words is "one hundred twenty-two million, one hundred thirty thousand, thirty".
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