Base | Representation |
---|---|
bin | 10101100001000010… |
… | …111101100110010111 |
3 | 2012122002101011011221 |
4 | 111201002331212113 |
5 | 334303332044111 |
6 | 14340253311211 |
7 | 1445341166653 |
oct | 254102754627 |
9 | 65562334157 |
10 | 23103003031 |
11 | 9886052139 |
12 | 4589195507 |
13 | 22425147c4 |
14 | 1192461a63 |
15 | 9033a9371 |
hex | 5610bd997 |
23103003031 has 4 divisors (see below), whose sum is σ = 23103595600. Its totient is φ = 23102410464.
The previous prime is 23103003023. The next prime is 23103003041. The reversal of 23103003031 is 13030030132.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 23103003031 - 23 = 23103003023 is a prime.
It is a super-2 number, since 2×231030030312 (a number of 22 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 = 23103002996 and 23103003014.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23103003041) 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, 233346 + ... + 317263.
It is an arithmetic number, because the mean of its divisors is an integer number (5775898900).
Almost surely, 223103003031 is an apocalyptic number.
23103003031 is a deficient number, since it is larger than the sum of its proper divisors (592569).
23103003031 is an equidigital number, since it uses as much as digits as its factorization.
23103003031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 592568.
The product of its (nonzero) digits is 162, while the sum is 16.
Adding to 23103003031 its reverse (13030030132), we get a palindrome (36133033163).
The spelling of 23103003031 in words is "twenty-three billion, one hundred three million, three thousand, thirty-one".
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