Base | Representation |
---|---|
bin | 110111111011110111… |
… | …1000111100110001111 |
3 | 102111001101210122210210 |
4 | 1233313233013212033 |
5 | 3432001313104411 |
6 | 131103233533503 |
7 | 11451460622010 |
oct | 1576757074617 |
9 | 374041718723 |
10 | 120120441231 |
11 | 46a4094842a |
12 | 1b344114293 |
13 | b43413707b |
14 | 5b57339007 |
15 | 31d0846ca6 |
hex | 1bf7bc798f |
120120441231 has 16 divisors (see below), whose sum is σ = 185097312000. Its totient is φ = 67869012288.
The previous prime is 120120441229. The next prime is 120120441239. The reversal of 120120441231 is 132144021021.
It is not a de Polignac number, because 120120441231 - 21 = 120120441229 is a prime.
It is a super-2 number, since 2×1201204412312 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a junction number, because it is equal to n+sod(n) for n = 120120441198 and 120120441207.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (120120441239) 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, 32133081 + ... + 32136818.
It is an arithmetic number, because the mean of its divisors is an integer number (11568582000).
Almost surely, 2120120441231 is an apocalyptic number.
120120441231 is a deficient number, since it is larger than the sum of its proper divisors (64976870769).
120120441231 is an equidigital number, since it uses as much as digits as its factorization.
120120441231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 64269998.
The product of its (nonzero) digits is 384, while the sum is 21.
Adding to 120120441231 its reverse (132144021021), we get a palindrome (252264462252).
The spelling of 120120441231 in words is "one hundred twenty billion, one hundred twenty million, four hundred forty-one thousand, two hundred thirty-one".
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