Base | Representation |
---|---|
bin | 11100111001001000… |
… | …111011010000001000 |
3 | 2222002002000122000212 |
4 | 130321020323100020 |
5 | 1002013443142412 |
6 | 22130231220252 |
7 | 2145534436661 |
oct | 347110732010 |
9 | 88062018025 |
10 | 31023412232 |
11 | 1217a9a886a |
12 | 6019817688 |
13 | 2c0540b877 |
14 | 170432c368 |
15 | c188d2222 |
hex | 73923b408 |
31023412232 has 12 divisors (see below), whose sum is σ = 58169832045. Its totient is φ = 15511457024.
The previous prime is 31023412187. The next prime is 31023412241. The reversal of 31023412232 is 23221432013.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in 2 ways, for example, as 30371427076 + 651985156 = 174274^2 + 25534^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=124546.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 31023412198 and 31023412207.
It is an unprimeable number.
It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 467048 + ... + 529320.
Almost surely, 231023412232 is an apocalyptic number.
It is an amenable number.
31023412232 is a deficient number, since it is larger than the sum of its proper divisors (27146419813).
31023412232 is an frugal number, since it uses more digits than its factorization.
31023412232 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 124552 (or 62275 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 23.
Adding to 31023412232 its reverse (23221432013), we get a palindrome (54244844245).
The spelling of 31023412232 in words is "thirty-one billion, twenty-three million, four hundred twelve thousand, two hundred thirty-two".
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