Base | Representation |
---|---|
bin | 11101000011110110… |
… | …000000011010100111 |
3 | 2222112120221201220121 |
4 | 131003312000122213 |
5 | 1002400432031043 |
6 | 22200124342411 |
7 | 2153145066244 |
oct | 350366003247 |
9 | 88476851817 |
10 | 31203002023 |
11 | 12262310286 |
12 | 60699a4a07 |
13 | 2c3369ab0b |
14 | 172011a5cb |
15 | c29558ded |
hex | 743d806a7 |
31203002023 has 8 divisors (see below), whose sum is σ = 33151373280. Its totient is φ = 29312791200.
The previous prime is 31203001979. The next prime is 31203002027. The reversal of 31203002023 is 32020030213.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 31203002023 - 221 = 31200904871 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 31203001988 and 31203002006.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31203002027) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14539003 + ... + 14541148.
It is an arithmetic number, because the mean of its divisors is an integer number (4143921660).
Almost surely, 231203002023 is an apocalyptic number.
31203002023 is a deficient number, since it is larger than the sum of its proper divisors (1948371257).
31203002023 is a wasteful number, since it uses less digits than its factorization.
31203002023 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 29080217.
The product of its (nonzero) digits is 216, while the sum is 16.
Adding to 31203002023 its reverse (32020030213), we get a palindrome (63223032236).
The spelling of 31203002023 in words is "thirty-one billion, two hundred three million, two thousand, twenty-three".
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