Base | Representation |
---|---|
bin | 1111101001001… |
… | …10100101000110 |
3 | 100010221011202012 |
4 | 13310212211012 |
5 | 232043330042 |
6 | 21004414222 |
7 | 3152302550 |
oct | 764464506 |
9 | 303834665 |
10 | 131230022 |
11 | 68092070 |
12 | 37b47372 |
13 | 21259601 |
14 | 136004d0 |
15 | b7c2e82 |
hex | 7d26946 |
131230022 has 16 divisors (see below), whose sum is σ = 245417472. Its totient is φ = 51128520.
The previous prime is 131230003. The next prime is 131230049. The reversal of 131230022 is 220032131.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (14).
It is a junction number, because it is equal to n+sod(n) for n = 131229979 and 131230006.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425918 + ... + 426225.
It is an arithmetic number, because the mean of its divisors is an integer number (15338592).
Almost surely, 2131230022 is an apocalyptic number.
131230022 is a deficient number, since it is larger than the sum of its proper divisors (114187450).
131230022 is a wasteful number, since it uses less digits than its factorization.
131230022 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 852163.
The product of its (nonzero) digits is 72, while the sum is 14.
The square root of 131230022 is about 11455.5672928057. The cubic root of 131230022 is about 508.1723922528.
Adding to 131230022 its reverse (220032131), we get a palindrome (351262153).
The spelling of 131230022 in words is "one hundred thirty-one million, two hundred thirty thousand, twenty-two".
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