Base | Representation |
---|---|
bin | 10010101010110110… |
… | …10000010000011111 |
3 | 221212112022101120110 |
4 | 21111123100100133 |
5 | 131011411024211 |
6 | 4334330421103 |
7 | 503245206411 |
oct | 112533202037 |
9 | 27775271513 |
10 | 10023142431 |
11 | 4283891295 |
12 | 1b38891793 |
13 | c39731013 |
14 | 6b12689b1 |
15 | 3d9e2eea6 |
hex | 2556d041f |
10023142431 has 4 divisors (see below), whose sum is σ = 13364189912. Its totient is φ = 6682094952.
The previous prime is 10023142427. The next prime is 10023142463. The reversal of 10023142431 is 13424132001.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 10023142431 - 22 = 10023142427 is a prime.
It is a super-2 number, since 2×100231424312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 10023142398 and 10023142407.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10023141431) 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, 1670523736 + ... + 1670523741.
It is an arithmetic number, because the mean of its divisors is an integer number (3341047478).
Almost surely, 210023142431 is an apocalyptic number.
10023142431 is a deficient number, since it is larger than the sum of its proper divisors (3341047481).
10023142431 is an equidigital number, since it uses as much as digits as its factorization.
10023142431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3341047480.
The product of its (nonzero) digits is 576, while the sum is 21.
Adding to 10023142431 its reverse (13424132001), we get a palindrome (23447274432).
The spelling of 10023142431 in words is "ten billion, twenty-three million, one hundred forty-two thousand, four hundred thirty-one".
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