Base | Representation |
---|---|
bin | 101111111110110111… |
… | …1110111010111110111 |
3 | 100211222010122001021110 |
4 | 1133331233313113313 |
5 | 3142012101243111 |
6 | 115200411250103 |
7 | 10305314466240 |
oct | 1377557672767 |
9 | 324863561243 |
10 | 103041431031 |
11 | 3a777224270 |
12 | 17b78449933 |
13 | 994196bc86 |
14 | 4db6d6dcc7 |
15 | 2a312645a6 |
hex | 17fdbf75f7 |
103041431031 has 64 divisors (see below), whose sum is σ = 177399300096. Its totient is φ = 51650860800.
The previous prime is 103041431011. The next prime is 103041431041. The reversal of 103041431031 is 130134140301.
It is a de Polignac number, because none of the positive numbers 2k-103041431031 is a prime.
It is a super-2 number, since 2×1030414310312 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a junction number, because it is equal to n+sod(n) for n = 103041430989 and 103041431007.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (103041431011) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 704011 + ... + 837683.
It is an arithmetic number, because the mean of its divisors is an integer number (2771864064).
Almost surely, 2103041431031 is an apocalyptic number.
103041431031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
103041431031 is a deficient number, since it is larger than the sum of its proper divisors (74357869065).
103041431031 is a wasteful number, since it uses less digits than its factorization.
103041431031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 133812.
The product of its (nonzero) digits is 432, while the sum is 21.
Adding to 103041431031 its reverse (130134140301), we get a palindrome (233175571332).
The spelling of 103041431031 in words is "one hundred three billion, forty-one million, four hundred thirty-one thousand, thirty-one".
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