Base | Representation |
---|---|
bin | 101111111110100010… |
… | …1100001001010101111 |
3 | 100211221100202001120022 |
4 | 1133331011201022233 |
5 | 3142001231030111 |
6 | 115155333312355 |
7 | 10305121232636 |
oct | 1377505411257 |
9 | 324840661508 |
10 | 103030330031 |
11 | 3a770a31992 |
12 | 17b747956bb |
13 | 993c583235 |
14 | 4db56c051d |
15 | 2a302c02db |
hex | 17fd1612af |
103030330031 has 4 divisors (see below), whose sum is σ = 108452979000. Its totient is φ = 97607681064.
The previous prime is 103030330021. The next prime is 103030330049. The reversal of 103030330031 is 130033030301.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130033030301 = 71 ⋅1831451131.
It is a cyclic number.
It is not a de Polignac number, because 103030330031 - 234 = 85850460847 is a prime.
It is a super-2 number, since 2×1030303300312 (a number of 23 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 = 103030329991 and 103030330009.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (103030330001) 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, 2711324456 + ... + 2711324493.
It is an arithmetic number, because the mean of its divisors is an integer number (27113244750).
Almost surely, 2103030330031 is an apocalyptic number.
103030330031 is a deficient number, since it is larger than the sum of its proper divisors (5422648969).
103030330031 is an equidigital number, since it uses as much as digits as its factorization.
103030330031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5422648968.
The product of its (nonzero) digits is 243, while the sum is 17.
Adding to 103030330031 its reverse (130033030301), we get a palindrome (233063360332).
The spelling of 103030330031 in words is "one hundred three billion, thirty million, three hundred thirty thousand, thirty-one".
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