Base | Representation |
---|---|
bin | 110111111000101000… |
… | …1100001101000000111 |
3 | 102110202211210022011012 |
4 | 1233301101201220013 |
5 | 3431241034121411 |
6 | 131044402032435 |
7 | 11446003224545 |
oct | 1576121415007 |
9 | 373684708135 |
10 | 120012020231 |
11 | 469957250a4 |
12 | 1b31394871b |
13 | b41783562c |
14 | 5b46b94d95 |
15 | 31c607c18b |
hex | 1bf1461a07 |
120012020231 has 4 divisors (see below), whose sum is σ = 120875416200. Its totient is φ = 119148624264.
The previous prime is 120012020209. The next prime is 120012020237. The reversal of 120012020231 is 132020210021.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 120012020231 - 214 = 120012003847 is a prime.
It is a super-2 number, since 2×1200120202312 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (120012020237) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431697776 + ... + 431698053.
It is an arithmetic number, because the mean of its divisors is an integer number (30218854050).
Almost surely, 2120012020231 is an apocalyptic number.
120012020231 is a deficient number, since it is larger than the sum of its proper divisors (863395969).
120012020231 is an equidigital number, since it uses as much as digits as its factorization.
120012020231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 863395968.
The product of its (nonzero) digits is 48, while the sum is 14.
Adding to 120012020231 its reverse (132020210021), we get a palindrome (252032230252).
The spelling of 120012020231 in words is "one hundred twenty billion, twelve million, twenty thousand, two hundred thirty-one".
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